GMC Trucks and SUV
CABALLERO and SPIRIT
6 cyl 200ci 1978-79 3spd, RWD, Saginaw, iron case, 7 bolt side cover BK115 BK115AWS
231ci 1978-79 3spd, RWD, Saginaw, iron case, 7 bolt side cover BK115 BK115AWS
250ci 1971-77 3spd, RWD, Saginaw, iron case, 7 bolt side cover BK115 BK115AWS
3.8L 1980-81 3spd, RWD, Saginaw, iron case, 7 bolt side cover BK115 BK115AWS
1980-81 4spd, RWD, Saginaw, iron case, 7 bolt side cover BK115 BK115WS
8 cyl 260ci 1975-77 3spd, RWD, Saginaw, iron case, 7 bolt side cover BK115 BK115AWS
1975-77 4spd, RWD, Saginaw, iron case, 7 bolt side cover BK115 BK115WS
267ci 1979 3spd, RWD, Saginaw, iron case, 7 bolt side cover BK115 BK115AWS
1979 4spd, RWD, Saginaw, iron case, 7 bolt side cover BK115 BK115WS
305ci 1976-79 3spd, RWD, Saginaw, iron case, 7 bolt side cover BK115 BK115AWS
1976-79 4spd, RWD, Saginaw, iron case, 7 bolt side cover BK115 BK115WS
307ci 1971-73 3spd, RWD, Saginaw, iron case, 7 bolt side cover BK115 BK115AWS
1971-73 4spd, RWD, Saginaw, iron case, 7 bolt side cover BK115 BK115WS
1971-73 4spd, RWD, M21/M22, Muncie, aluminum case, 7 bolt side cover BK116 BK116WS
1971-73 4spd, RWD, M21/M22, Muncie, aluminum case, 7 bolt side cover BK116HD BK116HDWS
– max load front and rear mainshaft bearings
350ci 1971-79 3spd, RWD, Saginaw, iron case, 7 bolt side cover BK115 BK115AWS
1971-79 4spd, RWD, Saginaw, iron case, 7 bolt side cover BK115 BK115WS
1971-74 4spd, RWD, M21/M22, Muncie, aluminum case, 7 bolt side cover BK116 BK116WS
1971-74 4spd, RWD, M21/M22, Muncie, aluminum case, 7 bolt side cover BK116HD BK116HDWS
– max load front and rear mainshaft bearings
402ci 1971-72 4spd, RWD, M21/M22, Muncie, aluminum case, 7 bolt side cover BK116 BK116WS
1971-72 4spd, RWD, M21/M22, Muncie, aluminum case, 7 bolt side cover BK116HD BK116HDWS
– max load front and rear mainshaft bearings
454ci 1971-74 4spd, RWD, M21/M22, Muncie, aluminum case, 7 bolt side cover BK116 BK116WS
1971-74 4spd, RWD, M21/M22, Muncie, aluminum case, 7 bolt side cover BK116HD BK116HDWS
– max load front and rear mainshaft bearings
5.0L 1980-81 3spd, RWD, Saginaw, iron case, 7 bolt side cover BK115 BK115AWS
1980-81 4spd, RWD, Saginaw, iron case, 7 bolt side cover BK115 BK115WS
CANYON
5 cyl 3.5L 2004-on 5spd, RWD or 4WD, CC5MT BK473 BK473WS
JIMMY- S SERIES COMPACT (similar to S10 BLAZER)
4 cyl 1.9L 1983-86 4spd, RWD, Isuzu S101, aluminum case, rear load BK168 BK168WS
1983-86 4spd, RWD, T4C, aluminum case and top cover, cast “1353” BK148 BK148WS
– ball input bearing
1984-86 4spd, RWD, T4, aluminum case and top cover, cast “1352” BK107 BK107BWS
– tapered input bearing
1983-86 5spd, RWD, T5 non-World Class, aluminum case and top cover, cast “1352” BK107 BK107WS
2.0L 1983-84 4spd, RWD, T4C, aluminum case and top cover, cast “1353” BK148 BK148WS
– ball input bearing
1984 4spd, RWD, T4, aluminum case and top cover, cast “1352” BK107 BK107BWS
– tapered input bearing
1983-84 5spd, RWD, T5 non-World Class, aluminum case and top cover, cast “1352” BK107 BK107WS
2.2L 1984-85 4spd, RWD, Isuzu S101, aluminum case, rear load BK168 BK168WS
1984-85 4spd, RWD, T4C, aluminum case and top cover, cast “1353” BK148 BK148WS
– ball input bearing
1984-85 4spd, RWD, T4, aluminum case and top cover, cast “1352” BK107 BK107BWS
– tapered input bearing
1984-85 5spd, RWD, T5 non-World Class, aluminum case and top cover, cast “1352” BK107 BK107WS
1994-95 5spd, RWD, T5 World Class, aluminum case, cast “1352” BK149 BK149WS
1996-on 5spd, RWD, NV1500, “mini-Getrag” aluminum case, rear load BK416 BK416WS
2.5L 1984-85 4spd, RWD, Isuzu S101, aluminum case, rear load BK168 BK168WS
1984-87 4spd, RWD or 4WD, T4C, aluminum case and top cover, cast “1353” BK148 BK148WS
– ball input bearing
1984-87 4spd, RWD or 4WD, T4, aluminum case and top cover, cast “1352” BK107 BK107BWS
– tapered input bearing
JIMMY- S SERIES COMPACT (similar to S10 BLAZER)
Continued
4 cyl 2.5L 1984-93 5spd, RWD or 4WD, T5 non-World Class, alum case and top cover, cast “1352” BK107 BK107WS
– all synchro rings are single piece design
1988-93 5spd, RWD or 4WD, T5 World Class, aluminum case, cast “1352” BK149 BK149WS
– 1st and 2nd synchro rings are fiber lined multi-piece
6 cyl 2.8L 1983-85 4spd, RWD, Isuzu S101, aluminum case, rear load BK168 BK168WS
1983-87 4spd, RWD or 4WD, T4C, aluminum case and top cover, cast “1353” BK148 BK148WS
– ball input bearing
1984-87 4spd, RWD or 4WD, T4, aluminum case and top cover, cast “1352” BK107 BK107BWS
– tapered input bearing
1983-93 5spd, RWD or 4WD, T5 non-World Class, alum case and top cover, cast “1352” BK107 BK107WS
– all synchro rings are single piece design
1988-93 5spd, RWD or 4WD, T5 World Class, aluminum case, cast “1352” BK149 BK149WS
– 1st and 2nd synchro rings are fiber lined multi-piece
4.3L 1990 5spd, RWD or 4WD, 290 Getrag, aluminum case, integral bellhousing BK235A BK235AWS
– ball and roller input bearing, and single ball output bearing
– 1st and 2nd synchro rings are single piece design
1991-94 5spd, RWD or 4WD, 290 Getrag, aluminum case, integral bellhousing BK235B BK235BWS
– single ball input and output bearings
– 1st and 2nd synchro rings are single piece design
1995-on 5spd, RWD or 4WD, 290 Getrag, aluminum case, integral bellhousing BK235B BK235DWS
– single ball input and output bearings
– 1st and 2nd synchro rings are multi-piece design
JIMMY, SUBURBAN and YUKON
6 cyl 194ci 1969-76 3spd, RWD, Saginaw, iron case, 7 bolt side cover BK115 BK115AWS
– 9 5/8 case
1969-76 3spd, RWD or 4WD, HD Muncie 330, iron case, 7 bolt side cover BK289 BK289WS
– 11 case
1976 3spd, RWD or 4WD, Tremec, iron case, 9 bolt top cover BK111 BK111AWS
1969-76 4spd, RWD or 4WD, SM465, iron case, iron top cover BK129 BK129WS
230ci 1969-76 3spd, RWD or 4WD, Saginaw, iron case, 7 bolt side cover BK115 BK115AWS
– 9 5/8 case
1969-76 3spd, RWD or 4WD, HD Muncie 330, iron case, 7 bolt side cover BK289 BK289WS
– 11 case
1976 3spd, RWD or 4WD, Tremec, iron case, 9 bolt top cover BK111 BK111AWS
1969-76 4spd, RWD or 4WD, SM465, iron case, iron top cover BK129 BK129WS
250ci 1969-81 3spd, RWD or 4WD, Saginaw, iron case, 7 bolt side cover BK115 BK115AWS
– 9 5/8 case
1969-76 3spd, RWD or 4WD, HD Muncie 330, iron case, 7 bolt side cover BK289 BK289WS
– 11 case
1976-81 3spd, RWD or 4WD, Tremec, iron case, 9 bolt top cover BK111 BK111AWS
1969-84 4spd, RWD or 4WD, SM465, iron case, iron top cover BK129 BK129WS
292ci 1969-81 3spd, RWD or 4WD, Saginaw, iron case, 7 bolt side cover BK115 BK115AWS
– 9 5/8 case
1969-76 3spd, RWD or 4WD, HD Muncie 330, iron case, 7 bolt side cover BK289 BK289WS
– 11 case
1976-81 3spd, RWD or 4WD, Tremec, iron case, 9 bolt top cover BK111 BK111AWS
1969-84 4spd, RWD or 4WD, SM465, iron case, iron top cover BK129 BK129WS
8 cyl 305ci 1976-79 3spd, RWD or 4WD, Saginaw, iron case, 7 bolt side cover BK115 BK115AWS
1976-79 3spd, RWD or 4WD, Tremec, iron case, 9 bolt top cover BK111 BK111AWS
1976-79 4spd, RWD or 4WD, SM465, iron case, iron top cover BK129 BK129WS
307ci 1969-73 3spd, RWD or 4WD, Saginaw, iron case, 7 bolt side cover BK115 BK115AWS
– 9 5/8 case
1969-73 3spd, RWD or 4WD, HD Muncie 330, iron case, 7 bolt side cover BK289 BK289WS
– 11 case
1969-73 4spd, RWD or 4WD, SM465, iron case, iron top cover BK129 BK129WS
350ci 1969-79 3spd, RWD or 4WD, Saginaw, iron case, 7 bolt side cover BK115 BK115AWS
– 9 5/8 case
JIMMY, SUBURBAN and YUKON
Continued
8 cyl 350ci 1969-76 3spd, RWD or 4WD, HD Muncie 330, iron case, 7 bolt side cover BK289 BK289WS
– 11 case
1976-79 3spd, RWD or 4WD, Tremec, iron case, 9 bolt top cover BK111 BK111AWS
1969-79 4spd, RWD or 4WD, SM465, iron case, iron top cover BK129 BK129WS
396ci 1969-71 4spd, RWD or 4WD, SM465, iron case, iron top cover BK129 BK129WS
454ci 1973-79 4spd, RWD or 4WD, SM465, iron case, iron top cover BK129 BK129WS
5.0L 1980-81 3spd, RWD or 4WD, Saginaw, iron case, 7 bolt side cover BK115 BK115AWS
1980-81 3spd, RWD or 4WD, Tremec, iron case, 9 bolt top cover BK111 BK111AWS
1980-87 4spd, RWD or 4WD, SM465, iron case, iron top cover BK129 BK129WS
– 17.28mm wide input bearing
1988-91 4spd, RWD or 4WD, SM465, iron case, aluminum top cover BK129L BK129LWS
– 21mm wide input bearing
1992-94 5spd, RWD or 4WD, 290 Getrag, aluminum case, integral bellhousing BK235B BK235BWS
5.7L 1980-81 3spd, RWD or 4WD, Saginaw, iron case, 7 bolt side cover BK115 BK115AWS
1980-81 3spd, RWD or 4WD, Tremec, iron case, 9 bolt top cover BK111 BK111AWS
1980-87 4spd, RWD or 4WD, SM465, iron case, iron top cover BK129 BK129WS
– 17.28mm wide input bearing
1988-91 4spd, RWD or 4WD, SM465, iron case, aluminum top cover BK129L BK129LWS
– 21mm wide input bearing
1992-94 5spd, RWD or 4WD, 290 Getrag, aluminum case, integral bellhousing BK235B BK235BWS
7.4L 1980-87 4spd, RWD or 4WD, SM465, iron case, iron top cover BK129 BK129WS
– 17.28mm wide input bearing
1988-91 4spd, RWD or 4WD, SM465, iron case, aluminum top cover BK129L BK129LWS
– 21mm wide input bearing
PICKUP and VAN FULL SIZE (1987 and Earlier)
6 cyl 194ci 1963-67 3spd without overdrive, RWD, 318, light duty Muncie, 4 bolt side cover BK131A Inquire
1963-67 3spd with overdrive, RWD, 319, light duty Muncie, 4 bolt side cover BK140 Inquire
1963-67 3spd, T89, iron case, cast “T89” BK345 BK345WS
1966-76 3spd, RWD or 4WD, Saginaw, iron case, 7 bolt side cover BK115 BK115AWS
– 9 5/8 case
1968 3spd, RWD, T16, iron case, 9 bolt side cover, cast “T16” N/A N/A
1976 3spd, RWD or 4WD, HD Muncie 330, iron case, 7 bolt side cover BK289 BK289WS
– 11 case
1963-67 4spd, RWD or 4WD, SM420, iron case and iron top cover BK108 N/A
– case has one PTO cover
1967-71 4spd, RWD or 4WD, NP435, iron case with aluminum top cover BK127E BK127EWS
– ball input bearing
1967-71 4spd, RWD or 4WD, NP435, iron case with aluminum top cover BK127 BK127WS
– tapered input bearing
1968-76 4spd, RWD or 4WD, SM465, iron case, iron top cover BK129 BK129WS
– case has two PTO covers
230ci 1963-67 3spd without overdrive, RWD, 318, light duty Muncie, 4 bolt side cover BK131A Inquire
1963-67 3spd with overdrive, RWD, 319, light duty Muncie, 4 bolt side cover BK140 Inquire
1963-67 3spd, T89, iron case, cast “T89” BK345 BK345WS
1966-76 3spd, RWD or 4WD, Saginaw, iron case, 7 bolt side cover BK115 BK115AWS
– 9 5/8 case
1968 3spd, RWD, T16, iron case, 9 bolt side cover, cast “T16” N/A N/A
1976 3spd, RWD or 4WD, HD Muncie 330, iron case, 7 bolt side cover BK289 BK289WS
– 11 case
1963-67 4spd, RWD or 4WD, SM420, iron case and iron top cover BK108 N/A
– case has one PTO cover
1967-71 4spd, RWD or 4WD, NP435, iron case with aluminum top cover BK127E BK127EWS
– ball input bearing
1967-71 4spd, RWD or 4WD, NP435, iron case with aluminum top cover BK127 BK127WS
– tapered input bearing
1968-76 4spd, RWD or 4WD, SM465, iron case, iron top cover BK129 BK129WS
– case has two PTO covers
PICKUP and VAN FULL SIZE (1987 and Earlier)
Continued
6 cyl 235ci 1954-62 3spd without overdrive, RWD, 318, light duty Muncie, 4 bolt side cover BK131A Inquire
1954-62 3spd with overdrive, RWD, 319, light duty Muncie, 4 bolt side cover BK140 Inquire
1954-62 3spd, T89, iron case, cast “T89” BK345 BK345WS
1954-62 4spd, RWD or 4WD, SM420, iron case, iron top cover BK108 N/A
250ci 1963-67 3spd without overdrive, RWD, 318, light duty Muncie, 4 bolt side cover BK131A Inquire
1963-67 3spd with overdrive, RWD, 319, light duty Muncie, 4 bolt side cover BK140 Inquire
1963-67 3spd, T89, iron case, cast “T89” BK345 BK345WS
1966-84 3spd, RWD or 4WD, Saginaw, iron case, 7 bolt side cover BK115 BK115AWS
– 9 5/8 case
1968 3spd, RWD, T16, iron case, 9 bolt side cover, cast “T16” N/A N/A
1968-81 3spd, RWD or 4WD, HD Muncie 330, iron case, 7 bolt side cover BK289 BK289WS
– 11 case
1976-81 3spd, RWD or 4WD, Tremec, iron case, 9 bolt top cover BK111 BK111AWS
1963-67 4spd, RWD or 4WD, SM420, iron case, iron top cover BK108 N/A
– case has one PTO cover
1967-71 4spd, RWD or 4WD, NP435, iron case, aluminum top cover BK127E BK127EWS
– ball input bearing
1967-71 4spd, RWD or 4WD, NP435, iron case, aluminum top cover BK127 BK127WS
– tapered input bearing
1968-84 4spd, RWD or 4WD, SM465, iron case, iron top cover BK129 BK129WS
– case has two PTO covers
261ci 1954-61 3spd without overdrive, RWD, 318, light duty Muncie, 4 bolt side cover BK131A Inquire
1954-61 3spd with overdrive, RWD, 319, light duty Muncie, 4 bolt side cover BK140 Inquire
1954-61 3spd, T89, iron case, cast “T89” BK345 BK345WS
1954-61 4spd, RWD or 4WD, SM420, iron case, iron top cover BK108 N/A
292ci 1969-79 3spd, RWD or 4WD, Saginaw, iron case, 7 bolt side cover BK115 BK115AWS
– 9 5/8 case
1969-79 3spd, RWD or 4WD, HD Muncie 330, iron case, 7 bolt side cover BK289 BK289WS
– 11 case
1976-79 3spd, RWD or 4WD, Tremec, iron case, 9 bolt top cover BK111 BK111AWS
1969-71 4spd, RWD or 4WD, NP435, iron case, aluminum top cover BK127E BK127EWS
– ball input bearing
1969-71 4spd, RWD or 4WD, NP435, iron case, aluminum top cover BK127 BK127WS
– tapered input bearing
1969-79 4spd, RWD or 4WD, SM465, iron case, iron top cover BK129 BK129WS
305ci 1963-67 3spd without overdrive, RWD, 318, light duty Muncie, 4 bolt side cover BK131A Inquire
1963-67 3spd with overdrive, RWD, 319, light duty Muncie, 4 bolt side cover BK140 Inquire
1963-67 3spd, T89, iron case, cast “T89” BK345 BK345WS
1968 3spd, RWD, T16, iron case, 9 bolt side cover, cast “T16” N/A N/A
1968-70 3spd, RWD or 4WD, HD Muncie 330, iron case, 7 bolt side cover BK289 BK289WS
1960-67 4spd, RWD or 4WD, SM420, iron case, iron top cover BK108 N/A
1967-70 4spd, RWD or 4WD, NP435, iron case, aluminum top cover BK127E BK127EWS
– ball input bearing
1967-70 4spd, RWD or 4WD, NP435, iron case, aluminum top cover BK127 BK127WS
– tapered input bearing
1968-70 4spd, RWD or 4WD, SM465, iron case, iron top cover BK129 BK129WS
– case has two PTO covers
351ci 1963-67 3spd without overdrive, RWD, 318, light duty Muncie, 4 bolt side cover BK131A Inquire
1963-67 3spd with overdrive, RWD, 319, light duty Muncie, 4 bolt side cover BK140 Inquire
1963-67 3spd, T89, iron case, cast “T89” BK345 BK345WS
1968 3spd, RWD, T16, iron case, 9 bolt side cover, cast “T16” N/A N/A
1968-70 3spd, RWD or 4WD, HD Muncie 330, iron case, 7 bolt side cover BK289 BK289WS
1960-67 4spd, RWD or 4WD, SM420, iron case, iron top cover BK108 N/A
– case has one PTO cover
1967-70 4spd, RWD or 4WD, NP435, iron case, aluminum top cover BK127E BK127EWS
– ball input bearing
PICKUP and VAN FULL SIZE (1987 and Earlier)
Continued
6 cyl 351ci 1967-70 4spd, RWD or 4WD, NP435, iron case, aluminum top cover BK127 BK127WS
– tapered input bearing
1968-70 4spd, RWD or 4WD, SM465, iron case, iron top cover BK129 BK129WS
– case has two PTO covers
4.3L 1985-87 3spd, RWD or 4WD, Saginaw, iron case, 7 bolt side cover BK115 BK115AWS
1985-87 3spd with overdrive, NP833, iron case, 9 bolt side cover BK130 BK130WS
1985-87 4spd, RWD or 4WD, SM465, iron case, iron top cover BK129 BK129WS
4.8L 1980-87 3spd, RWD or 4WD, Saginaw, iron case, 7 bolt side cover BK115 BK115AWS
– 9 5/8 case
1980-81 3spd, RWD or 4WD, HD Muncie 330, iron case, 7 bolt side cover BK289 BK289WS
– 11 case
1980-81 3spd, RWD or 4WD, Tremec, iron case, 9 bolt top cover BK111 BK111AWS
1980-87 3spd with overdrive, NP833, iron case, 9 bolt side cover BK130 BK130WS
1980-87 4spd, RWD or 4WD, SM465, iron case, iron top cover BK129 BK129WS
8 cyl 283ci 1963-67 3spd without overdrive, RWD, 318, light duty Muncie, 4 bolt side cover BK131A Inquire
1963-67 3spd with overdrive, RWD, 319, light duty Muncie, 4 bolt side cover BK140 Inquire
1963-67 3spd, T89, iron case, cast “T89” BK345 BK345WS
1966-87 3spd, RWD or 4WD, Saginaw, iron case, 7 bolt side cover BK115 BK115AWS
1963-67 4spd, RWD or 4WD, SM420, iron case, iron top cover BK108 N/A
1967 4spd, RWD or 4WD, NP435, iron case, aluminum top cover BK127E BK127EWS
– ball input bearing
1967 4spd, RWD or 4WD, NP435, iron case, aluminum top cover BK127 BK127WS
– tapered input bearing
288ci 1955-59 3spd without overdrive, RWD, 318, light duty Muncie, 4 bolt side cover BK131A Inquire
1955-59 3spd with overdrive, RWD, 319, light duty Muncie, 4 bolt side cover BK140 Inquire
1955-59 3spd, T89, iron case, cast “T89” BK345 BK345WS
1955-59 4spd, RWD or 4WD, SM420, iron case, iron top cover BK108 N/A
– case has one PTO cover
305ci 1976-79 3spd, RWD or 4WD, Saginaw, iron case, 7 bolt side cover BK115 BK115AWS
– 9 5/8 case
1976-79 3spd, RWD or 4WD, HD Muncie 330, iron case, 7 bolt side cover BK289 BK289WS
– 11 case
1976-79 3spd, RWD or 4WD, Tremec, iron case, 9 bolt top cover BK111 BK111AWS
1976-79 4spd, RWD or 4WD, SM465, iron case, iron top cover BK129 BK129WS
307ci 1968-73 3spd, RWD or 4WD, Saginaw, iron case, 7 bolt side cover BK115 BK115AWS
– 9 5/8 case
1968-73 3spd, RWD or 4WD, HD Muncie 330, iron case, 7 bolt side cover BK289 BK289WS
– 11 case
1968-72 4spd, RWD or 4WD, NP435, iron case, aluminum top cover BK127E BK127EWS
– ball input bearing
1968-72 4spd, RWD or 4WD, NP435, iron case, aluminum top cover BK127 BK127WS
– tapered input bearing
1968-73 4spd, RWD or 4WD, SM465, iron case, iron top cover BK129 BK129WS
316ci 1955-59 3spd without overdrive, RWD, 318, light duty Muncie, 4 bolt side cover BK131A Inquire
1955-59 3spd with overdrive, RWD, 319, light duty Muncie, 4 bolt side cover BK140 Inquire
1955-59 3spd, T89, iron case, cast “T89” BK345 BK345WS
1955-59 4spd, RWD or 4WD, SM420, iron case, iron top cover BK108 N/A
336ci 1955-59 3spd without overdrive, RWD, 318, light duty Muncie, 4 bolt side cover BK131A Inquire
1955-59 3spd with overdrive, RWD, 319, light duty Muncie, 4 bolt side cover BK140 Inquire
1955-59 3spd, T89, iron case, cast “T89” BK345 BK345WS
1955-59 4spd, RWD or 4WD, SM420, iron case, iron top cover BK108 N/A
347ci 1955-59 3spd without overdrive, RWD, 318, light duty Muncie, 4 bolt side cover BK131A Inquire
1955-59 3spd with overdrive, RWD, 319, light duty Muncie, 4 bolt side cover BK140 Inquire
1955-59 3spd, T89, iron case, cast “T89” BK345 BK345WS
1955-59 4spd, RWD or 4WD, SM420, iron case, iron top cover BK108 N/A
PICKUP and VAN FULL SIZE (1987 and Earlier)
Continued
8 cyl 350ci 1969-79 3spd, RWD or 4WD, Saginaw, iron case, 7 bolt side cover BK115 BK115AWS
– 9 5/8 case
1969-79 3spd, RWD or 4WD, HD Muncie 330, iron case, 7 bolt side cover BK289 BK289WS
– 11 case
1976-79 3spd, RWD or 4WD, Tremec, iron case, 9 bolt top cover BK111 BK111AWS
1969-71 4spd, RWD or 4WD, NP435, iron case, aluminum top cover BK127E BK127EWS
– ball input bearing
1969-71 4spd, RWD or 4WD, NP435, iron case, aluminum top cover BK127 BK127WS
– tapered input bearing
1968-79 4spd, RWD or 4WD, SM465, iron case, iron top cover BK129 BK129WS
396ci 1969-73 4spd, RWD or 4WD, SM465, iron case, iron top cover BK129 BK129WS
402ci 1970-73 4spd, RWD or 4WD, SM465, iron case, iron top cover BK129 BK129WS
454ci 1973-79 4spd, RWD or 4WD, SM465, iron case, iron top cover BK129 BK129WS
4.8L 1999-on 5spd, RWD or 4WD, 290 Getrag, aluminum case, integral bellhousing BK235B BK235DWS
5.0L 1980-81 3spd, RWD or 4WD, HD Muncie 330, iron case, 7 bolt side cover BK289 BK289WS
– 11 case
1980-81 3spd, RWD or 4WD, Tremec, iron case, 9 bolt top cover BK111 BK111AWS
1980-87 3spd, RWD or 4WD, Saginaw, iron case, 7 bolt side cover BK115 BK115AWS
– 9 5/8 case
1980-87 3spd with overdrive, NP833, iron case, 9 bolt side cover BK130 BK130WS
1980-87 4spd, RWD or 4WD, SM465, iron case, iron top cover BK129 BK129WS
5.7L 1980-81 3spd, RWD or 4WD, HD Muncie 330, iron case, 7 bolt side cover BK289 BK289WS
– 11 case
1980-81 3spd, RWD or 4WD, Tremec, iron case, 9 bolt top cover BK111 BK111AWS
1980-87 3spd, RWD or 4WD, Saginaw, iron case, 7 bolt side cover BK115 BK115AWS
– 9 5/8 case
1980-87 3spd with overdrive, NP833, iron case, 9 bolt side cover BK130 BK130WS
1980-87 4spd, RWD or 4WD, SM465, iron case, iron top cover BK129 BK129WS
6.2L 1982-87 3spd with overdrive, NP833, iron case, 9 bolt side cover BK130 BK130WS
1982-87 4spd, RWD or 4WD, SM465, iron case, iron top cover BK129 BK129WS
7.4L 1980-87 4spd, RWD or 4WD, SM465, iron case, iron top cover BK129 BK129WS
S15 – S SERIES COMPACT TRUCK
4 cyl 1.9L 1982-86 4spd, RWD, Isuzu S101, aluminum case, rear load BK168 BK168WS
1982-86 4spd, RWD, T4C, aluminum case and top cover, cast “1353” BK148 BK148WS
– ball input bearing
1984-86 4spd, RWD, T4, aluminum case and top cover, cast “1352” BK107 BK107BWS
– tapered input bearing
1982-86 5spd, RWD, T5 non-World Class, aluminum case and top cover, cast “1352” BK107 BK107WS
2.0L 1983-84 4spd, RWD, T4C, aluminum case and top cover, cast “1353” BK148 BK148WS
– ball input bearing
1984 4spd, RWD, T4, aluminum case and top cover, cast “1352” BK107 BK107BWS
– tapered input bearing
1983-84 5spd, RWD, T5 non-World Class, aluminum case and top cover, cast “1352” BK107 BK107WS
2.2L 1984-85 4spd, Isuzu S101, aluminum case, rear load BK168 BK168WS
1984-85 4spd, RWD, T4C, aluminum case and top cover, cast “1353” BK148 BK148WS
– ball input bearing
1984-85 4spd, RWD, T4, aluminum case and top cover, cast “1352” BK107 BK107BWS
– tapered input bearing
1984-85 5spd, RWD, T5 non-World Class, aluminum case and top cover, cast “1352” BK107 BK107WS
1994-95 5spd, RWD, T5 World Class, aluminum case, cast “1352” BK149 BK149WS
1996-on 5spd, RWD, NV1500, “mini-Getrag” aluminum case, rear load BK416 BK416WS
2.5L 1984-85 4spd, RWD, Isuzu S101, aluminum case, rear load BK168 BK168WS
1984-87 4spd, RWD or 4WD, T4C, aluminum case and top cover, cast “1353” BK148 BK148WS
– ball input bearing
1984-87 4spd, RWD or 4WD, T4, aluminum case and top cover, cast “1352” BK107 BK107BWS
– tapered input bearing
S15 – S SERIES COMPACT TRUCK
Continued
4 cyl 2.5L 1984-93 5spd, RWD or 4WD, T5 non-World Class, alum case and top cover, cast “1352” BK107 BK107WS
– all synchro rings are single piece design
1988-93 5spd, RWD or 4WD, T5 World Class, aluminum case, cast “1352” BK149 BK149WS
– 1st and 2nd synchro rings are fiber lined multi-piece
6 cyl 2.8L 1982-85 4spd, RWD, Isuzu S101, aluminum case, rear load BK168 BK168WS
1982-87 4spd, RWD or 4WD, T4C, aluminum case and top cover, cast “1353” BK148 BK148WS
– ball input bearing
1984-87 4spd, RWD or 4WD, T4, aluminum case and top cover, cast “1352” BK107 BK107BWS
– tapered input bearing
1982-93 5spd, RWD or 4WD, T5 non-World Class, alum case and top cover, cast “1352” BK107 BK107WS
– all synchro rings are single piece design
1988-93 5spd, RWD or 4WD, T5 World Class, aluminum case, cast “1352” BK149 BK149WS
– 1st and 2nd synchro rings are fiber lined multi-piece
4.3L 1990 5spd, RWD or 4WD, 290 Getrag, aluminum case, integral bellhousing BK235A BK235AWS
– ball and roller input bearing
– single ball output bearing
– 1st and 2nd synchro rings are single piece design
1991-94 5spd, RWD or 4WD, 290 Getrag, aluminum case, integral bellhousing BK235B BK235BWS
– single ball input and output bearings
– 1st and 2nd synchro rings are single piece design
1995-on 5spd, RWD or 4WD, 290 Getrag, aluminum case, integral bellhousing BK235B BK235DWS
– single ball input and output bearings
– 1st and 2nd synchro rings are multi-piece design
SAFARI VAN
4 cyl 2.5L 1985-86 4spd, RWD, Saginaw, iron case, 7 bolt side cover BK115 BK115AWS
1985-89 5spd, RWD, T5 non-World Class, aluminum case, cast “1352” BK107 BK107WS
6 cyl 4.3L 1987-89 5spd, RWD, T5 non-World Class, aluminum case, cast “1352” BK107 BK107WS
STEPVAN (Forward Control)
4 cyl 3.9L 1989-91 4spd, RWD or 4WD, SM465, iron case, aluminum top cover BK129L BK129LWS
1989-90 5spd, RWD or 4WD, 290 Getrag, aluminum case, integral bellhousing BK235A BK235AWS
– ball and roller input bearing
– single ball output bearing
1991 5spd, RWD or 4WD, 290 Getrag, aluminum case, integral bellhousing BK235B BK235BWS
– single ball input and output bearings
1991 5spd, RWD or 4WD, NV4500, iron case, aluminum top cover BK308 BK308WS
6 cyl 194ci 1965-69 3spd without overdrive, RWD, 318, light duty Muncie, 4 bolt side cover BK131A Inquire
1965-69 3spd with overdrive, RWD, 319, light duty Muncie, 4 bolt side cover BK140 Inquire
1965-68 3spd, T89, iron case, cast “T89” BK345 BK345WS
1969-75 3spd, RWD or 4WD, HD Muncie 330, iron case, 7 bolt side cover BK289 BK289WS
1976 3spd, RWD or 4WD, Tremec, iron case, 9 bolt top cover BK111 BK111AWS
1965-67 4spd, RWD or 4WD, SM420, iron case, iron top cover BK108 N/A
– case has one PTO cover
1967-71 4spd, RWD or 4WD, NP435, iron case, aluminum top cover BK127E BK127EWS
– ball input bearing
1967-71 4spd, RWD or 4WD, NP435, iron case, aluminum top cover BK127 BK127WS
– tapered input bearing
1968-76 4spd, RWD or 4WD, SM465, iron case, iron top cover BK129 BK129WS
– case has two PTO covers
230ci 1965-69 3spd without overdrive, RWD, 318, light duty Muncie, 4 bolt side cover BK131A Inquire
1965-69 3spd with overdrive, RWD, 319, light duty Muncie, 4 bolt side cover BK140 Inquire
1965-68 3spd, T89, iron case, cast “T89” BK345 BK345WS
1969-75 3spd, RWD or 4WD, HD Muncie 330, iron case, 7 bolt side cover BK289 BK289WS
1976 3spd, RWD or 4WD, Tremec, iron case, 9 bolt top cover BK111 BK111AWS
1965-67 4spd, RWD or 4WD, SM420, iron case, iron top cover BK108 N/A
– case has one PTO cover
1967-71 4spd, RWD or 4WD, NP435, iron case, aluminum top cover BK127E BK127EWS
– ball input bearing
STEPVAN (Forward Control)
Continued
6 cyl 230ci 1967-71 4spd, RWD or 4WD, NP435, iron case, aluminum top cover BK127 BK127WS
– tapered input bearing
1968-76 4spd, RWD or 4WD, SM465, iron case, iron top cover BK129 BK129WS
– case has two PTO covers
250ci 1965-69 3spd without overdrive, RWD, 318, light duty Muncie, 4 bolt side cover BK131A Inquire
1965-69 3spd with overdrive, RWD, 319, light duty Muncie, 4 bolt side cover BK140 Inquire
1965-68 3spd, T89, iron case, cast “T89” BK345 BK345WS
1969-75 3spd, RWD or 4WD, HD Muncie 330, iron case, 7 bolt side cover BK289 BK289WS
1976-82 3spd, RWD or 4WD, Tremec, iron case, 9 bolt top cover BK111 BK111AWS
1980-84 3spd with overdrive, NP833, iron case, 9 bolt side cover BK130 BK130WS
1965-67 4spd, RWD or 4WD, SM420, iron case, iron top cover BK108 N/A
– case has one PTO cover
1967-71 4spd, RWD or 4WD, NP435, iron case, aluminum top cover BK127E BK127EWS
– ball input bearing
1967-71 4spd, RWD or 4WD, NP435, iron case, aluminum top cover BK127 BK127WS
– tapered input bearing
1968-84 4spd, RWD or 4WD, SM465, iron case, iron top cover BK129 BK129WS
– case has two PTO covers
292ci 1965-69 3spd without overdrive, RWD, 318, light duty Muncie, 4 bolt side cover BK131A Inquire
1965-69 3spd with overdrive, RWD, 319, light duty Muncie, 4 bolt side cover BK140 Inquire
1965-68 3spd, T89, iron case, cast “T89” BK345 BK345WS
1969-75 3spd, RWD or 4WD, HD Muncie 330, iron case, 7 bolt side cover BK289 BK289WS
1976-82 3spd, RWD or 4WD, Tremec, iron case, 9 bolt top cover BK111 BK111AWS
1980-81 3spd with overdrive, NP833, iron case, 9 bolt side cover BK130 BK130WS
1965-67 4spd, RWD or 4WD, SM420, iron case, iron top cover BK108 N/A
– case has one PTO cover
1967-71 4spd, RWD or 4WD, NP435, iron case, aluminum top cover BK127E BK127EWS
– ball input bearing
1967-71 4spd, RWD or 4WD, NP435, iron case, aluminum top cover BK127 BK127WS
– tapered input bearing
1968-87 4spd, RWD or 4WD, SM465, iron case, iron top cover BK129 BK129WS
– 17.28mm wide input bearing
1988-89 4spd, RWD or 4WD, SM465, iron case, aluminum top cover BK129 BK129LWS
– 21mm wide input bearing
1989 5spd, RWD or 4WD, 290 Getrag, aluminum case, integral bellhousing BK235A BK235AWS
4.3L 1990-91 4spd, RWD or 4WD, SM465, iron case, aluminum top cover BK129 BK129LWS
1990 5spd, RWD or 4WD, 290 Getrag, aluminum case, integral bellhousing BK235A BK235AWS
– ball and roller input bearing
– single ball output bearing
– 1st and 2nd synchro rings are single piece design
1991-94 5spd, RWD or 4WD, 290 Getrag, aluminum case, integral bellhousing BK235B BK235BWS
– single ball input and output bearings
– 1st and 2nd synchro rings are single piece design
1995 5spd, RWD or 4WD, 290 Getrag, aluminum case, integral bellhousing BK235B BK235DWS
– single ball input and output bearings
– 1st and 2nd synchro rings are multi-piece design
1992-95 5spd, RWD or 4WD, NV4500, iron case, aluminum top cover BK308 BK308WS
8 cyl 283ci 1965-68 3spd without overdrive, RWD, 318, light duty Muncie, 4 bolt side cover BK131A Inquire
1965-68 3spd with overdrive, RWD, 319, light duty Muncie, 4 bolt side cover BK140 Inquire
1965-68 3spd, T89, iron case, cast “T89” BK345 BK345WS
1965-67 4spd, RWD or 4WD, SM420, iron case, iron top cover BK108 N/A
– case has one PTO cover
1967-68 4spd, RWD or 4WD, NP435, iron case, aluminum top cover BK127E BK127EWS
– ball input bearing
1967-68 4spd, RWD or 4WD, NP435, iron case, aluminum top cover BK127 BK127WS
– tapered input bearing
1968 4spd, RWD or 4WD, SM465, iron case, iron top cover BK129 BK129WS
STEPVAN (Forward Control)
Continued
8 cyl 305ci 1976-79 3spd, RWD or 4WD, Tremec, iron case, 9 bolt top cover BK111 BK111AWS
1976-79 4spd, RWD or 4WD, SM465, iron case, iron top cover BK129 BK129WS
307ci 1969 3spd without overdrive, RWD, 318, light duty Muncie, 4 bolt side cover BK131A Inquire
1969 3spd with overdrive, RWD, 319, light duty Muncie, 4 bolt side cover BK140 Inquire
1969-73 3spd, RWD or 4WD, HD Muncie 330, iron case, 7 bolt side cover BK289 BK289WS
1969-71 4spd, RWD or 4WD, NP435, iron case, aluminum top cover BK127E BK127EWS
– ball input bearing
1969-71 4spd, RWD or 4WD, NP435, iron case, aluminum top cover BK127 BK127WS
– tapered input bearing
1968-87 4spd, RWD or 4WD, SM465, iron case, iron top cover BK129 BK129WS
– 17.28mm wide input bearing
1988-89 4spd, RWD or 4WD, SM465, iron case, aluminum top cover BK129L BK129LWS
– 21mm wide input bearing
1989 5spd, RWD or 4WD, 290 Getrag, aluminum case, integral bellhousing BK235A BK235AWS
350ci 1965-69 3spd without overdrive, RWD, 318, light duty Muncie, 4 bolt side cover BK131A Inquire
1965-69 3spd with overdrive, RWD, 319, light duty Muncie, 4 bolt side cover BK140 Inquire
1967-68 3spd, T89, iron case, cast “T89” BK345 BK345WS
1969-75 3spd, RWD or 4WD, HD Muncie 330, iron case, 7 bolt side cover BK289 BK289WS
1976-79 3spd, RWD or 4WD, Tremec, iron case, 9 bolt top cover BK111 BK111AWS
1967 4spd, RWD or 4WD, SM420, iron case, iron top cover BK108 N/A
– case has one PTO cover
1967-71 4spd, RWD or 4WD, NP435, iron case, aluminum top cover BK127E BK127EWS
– ball input bearing
1967-71 4spd, RWD or 4WD, NP435, iron case, aluminum top cover BK127 BK127WS
– tapered input bearing
1968-79 4spd, RWD or 4WD, SM465, iron case, iron top cover BK129 BK129WS
– case has two PTO covers
396ci 1969-73 4spd, RWD or 4WD, SM465, iron case, iron top cover BK129 BK129WS
402ci 1970-73 4spd, RWD or 4WD, SM465, iron case, iron top cover BK129 BK129WS
454ci 1973-79 4spd, RWD or 4WD, SM465, iron case, iron top cover BK129 BK129WS
5.0L 1980-81 3spd, RWD or 4WD, HD Muncie 330, iron case, 7 bolt side cover BK289 BK289WS
– 11 case
1980-81 3spd, RWD or 4WD, Tremec, iron case, 9 bolt top cover BK111 BK111AWS
1980-87 3spd, RWD or 4WD, Saginaw, iron case, 7 bolt side cover BK115 BK115AWS
– 9 5/8 case
1980-84 3spd with overdrive, NP833, iron case, 9 bolt side cover BK130 BK130WS
1980-84 4spd, RWD or 4WD, SM465, iron case, iron top cover BK129 BK129WS
5.7L 1980-84 3spd with overdrive, NP833, iron case, 9 bolt side cover BK130 BK130WS
1980-84 4spd, RWD or 4WD, SM465, iron case, iron top cover BK129 BK129WS
– 17.28mm wide input bearing
1988-91 4spd, RWD or 4WD, SM465, iron case, aluminum top cover BK129L BK129LWS
– 21mm wide input bearing
1989-90 5spd, RWD or 4WD, 290 Getrag, aluminum case, integral bellhousing BK235A BK235AWS
– ball and roller input bearing, single ball output bearing
– 1st and 2nd synchro rings are single piece design
1991-94 4spd, RWD or 4WD, 290 Getrag, aluminum case, integral bellhousing BK235B BK235BWS
– single ball input and output bearings
– 1st and 2nd synchro rings are single piece design
1995-99 5spd, RWD or 4WD, 290 Getrag, aluminum case, integral bellhousing BK235B BK235DWS
– single ball input and output bearings
– 1st and 2nd synchro rings are multi-piece design
– 30mm O.D. front and rear countershaft journals
1996-98 5spd, RWD or 4WD, 290 Getrag, aluminum case, integral bellhousing BK235B BK235EWS
– single ball input and output bearings
– 1st and 2nd synchro rings are multi-piece design
– 30mm O.D. front and rear countershaft journals
STEPVAN (Forward Control)
Continued
8 cyl 305ci 1976-79 3spd, RWD or 4WD, Tremec, iron case, 9 bolt top cover BK111 BK111AWS
1976-79 4spd, RWD or 4WD, SM465, iron case, iron top cover BK129 BK129WS
307ci 1969 3spd without overdrive, RWD, 318, light duty Muncie, 4 bolt side cover BK131A Inquire
1969 3spd with overdrive, RWD, 319, light duty Muncie, 4 bolt side cover BK140 Inquire
1969-73 3spd, RWD or 4WD, HD Muncie 330, iron case, 7 bolt side cover BK289 BK289WS
1969-71 4spd, RWD or 4WD, NP435, iron case, aluminum top cover BK127E BK127EWS
– ball input bearing
1969-71 4spd, RWD or 4WD, NP435, iron case, aluminum top cover BK127 BK127WS
– tapered input bearing
1968-87 4spd, RWD or 4WD, SM465, iron case, iron top cover BK129 BK129WS
– 17.28mm wide input bearing
1988-89 4spd, RWD or 4WD, SM465, iron case, aluminum top cover BK129L BK129LWS
– 21mm wide input bearing
1989 5spd, RWD or 4WD, 290 Getrag, aluminum case, integral bellhousing BK235A BK235AWS
350ci 1965-69 3spd without overdrive, RWD, 318, light duty Muncie, 4 bolt side cover BK131A Inquire
1965-69 3spd with overdrive, RWD, 319, light duty Muncie, 4 bolt side cover BK140 Inquire
1967-68 3spd, T89, iron case, cast “T89” BK345 BK345WS
1969-75 3spd, RWD or 4WD, HD Muncie 330, iron case, 7 bolt side cover BK289 BK289WS
1976-79 3spd, RWD or 4WD, Tremec, iron case, 9 bolt top cover BK111 BK111AWS
1967 4spd, RWD or 4WD, SM420, iron case, iron top cover BK108 N/A
– case has one PTO cover
1967-71 4spd, RWD or 4WD, NP435, iron case, aluminum top cover BK127E BK127EWS
– ball input bearing
1967-71 4spd, RWD or 4WD, NP435, iron case, aluminum top cover BK127 BK127WS
– tapered input bearing
1968-79 4spd, RWD or 4WD, SM465, iron case, iron top cover BK129 BK129WS
– case has two PTO covers
396ci 1969-73 4spd, RWD or 4WD, SM465, iron case, iron top cover BK129 BK129WS
402ci 1970-73 4spd, RWD or 4WD, SM465, iron case, iron top cover BK129 BK129WS
454ci 1973-79 4spd, RWD or 4WD, SM465, iron case, iron top cover BK129 BK129WS
5.0L 1980-81 3spd, RWD or 4WD, HD Muncie 330, iron case, 7 bolt side cover BK289 BK289WS
– 11 case
1980-81 3spd, RWD or 4WD, Tremec, iron case, 9 bolt top cover BK111 BK111AWS
1980-87 3spd, RWD or 4WD, Saginaw, iron case, 7 bolt side cover BK115 BK115AWS
– 9 5/8 case
1980-84 3spd with overdrive, NP833, iron case, 9 bolt side cover BK130 BK130WS
1980-84 4spd, RWD or 4WD, SM465, iron case, iron top cover BK129 BK129WS
5.7L 1980-84 3spd with overdrive, NP833, iron case, 9 bolt side cover BK130 BK130WS
1980-84 4spd, RWD or 4WD, SM465, iron case, iron top cover BK129 BK129WS
– 17.28mm wide input bearing
1988-91 4spd, RWD or 4WD, SM465, iron case, aluminum top cover BK129L BK129LWS
– 21mm wide input bearing
1989-90 5spd, RWD or 4WD, 290 Getrag, aluminum case, integral bellhousing BK235A BK235AWS
– ball and roller input bearing, single ball output bearing
– 1st and 2nd synchro rings are single piece design
1991-94 4spd, RWD or 4WD, 290 Getrag, aluminum case, integral bellhousing BK235B BK235BWS
– single ball input and output bearings
– 1st and 2nd synchro rings are single piece design
1995-99 5spd, RWD or 4WD, 290 Getrag, aluminum case, integral bellhousing BK235B BK235DWS
– single ball input and output bearings
– 1st and 2nd synchro rings are multi-piece design
– 30mm O.D. front and rear countershaft journals
1996-98 5spd, RWD or 4WD, 290 Getrag, aluminum case, integral bellhousing BK235B BK235EWS
– single ball input and output bearings
– 1st and 2nd synchro rings are multi-piece design
– 30mm O.D. front and rear countershaft journals
STEPVAN (Forward Control)
Continued
8 cyl 5.7L 1992-95 5spd, RWD or 4WD, NV4500, iron case, aluminum top cover – external clutch slave BK308 BK308WS
1996-99 5spd, RWD or 4WD, NV4500, iron case, aluminum top cover – internal clutch slave BK308B BK308BWS
6.2L 1982-87 3spd with overdrive, NP833, iron case, 9 bolt side cover BK130 BK130WS
1982-87 4spd, RWD or 4WD, SM465, iron case, iron top cover – 17.28mm wide input bearing BK129 BK129WS
1988-91 4spd, RWD or 4WD, SM465, iron case, aluminum top cover – 21mm wide input bearing BK129L BK129LWS
1992-95 5spd, RWD or 4WD, NV4500, iron case, aluminum top cover – external clutch slave BK308 BK308WS
1996-99 5spd, RWD or 4WD, NV4500, iron case, aluminum top cover – internal clutch slave BK308B BK308BWS
6.5L 1992-95 5spd, RWD or 4WD, NV4500, iron case, aluminum top cover – external clutch slave BK308 BK308WS
1996-99 5spd, RWD or 4WD, NV4500, iron case, aluminum top cover – internal clutch slave BK308B BK308BWS
7.4L 1980-87 4spd, RWD or 4WD, SM465, iron case, iron top cover – 17.28mm wide input bearing BK129 BK129WS
1988-91 4spd, RWD or 4WD, SM465, iron case, aluminum top cover – 21mm wide input bearing BK129L BK129LWS
1992-95 5spd, RWD or 4WD, NV4500, iron case, aluminum top cover – external clutch slave BK308 BK308WS
1996-99 5spd, RWD or 4WD, NV4500, iron case, aluminum top cover – internal clutch slave BK308B BK308BWS
1999-00 5spd, RWD or 4WD, NV4500, iron case, aluminum top cover – internal clutch slave BK308B BK308CWS
– reverse synchro ring
1500, 2500, 3500, SILVERADO 1500, SILVERADO 2500, SILVERADO 3500 and FULL SIZE VAN (1988 and Newer) 6 cyl 4.3L 1989-90 5spd, RWD or 4WD, 290 Getrag, aluminum case, integral bellhousing BK235A – ball and roller input bearing, single ball output bearing – 1st and 2nd synchro rings are single piece design BK235AWS
1991-94 4spd, RWD or 4WD, 290 Getrag, aluminum case, integral bellhousing – single ball input and output bearings – 1st and 2nd synchro rings are single piece design BK235B BK235BWS
1992-95 5spd, RWD or 4WD, NV4500, iron case, aluminum top cover – external clutch slave BK308 BK308WS
1995-on 5spd, RWD or 4WD, 290 Getrag, aluminum case, integral bellhousing – single ball input and output bearings – 1st and 2nd synchro rings are multi-piece design – 30mm O.D. front and rear countershaft journals BK235B BK235GWS
1996-98 5spd, RWD or 4WD, 290 Getrag, aluminum case, integral bellhousing – single ball input and output bearings – 1st and 2nd synchro rings are multi-piece design – 30mm O.D. front and rear countershaft journals BK235B BK235EWS
1996-99 5spd, RWD or 4WD, NV4500, iron case, aluminum top cover – internal clutch slave BK308 BK308BWS
1999-on 5spd, RWD or 4WD, NV4500, iron case, aluminum top cover – internal clutch slave BK308 BK308CWS
– reverse synchro ring
8 cyl 4.8L 1999-on 5spd, RWD or 4WD, 290 Getrag, aluminum case, integral bellhousing BK235B BK235GWS
5.0L 1988-91 4spd, RWD or 4WD, SM465, iron case, aluminum top cover BK129L BK129LWS
1988 4spd, RWD or 4WD, 290 Getrag, aluminum case, integral bellhousing – double ball and roller input and output bearings – 1st and 2nd synchro rings are single piece design BK235 BK235WS
1988-89 5spd, RWD or 4WD, 290 Getrag, aluminum case, integral bellhousing – double ball and roller input and output bearings – 1st and 2nd synchro rings are single piece design BK235 BK235WS
1500, 2500, 3500, SILVERADO 1500, SILVERADO 2500, SILVERADO 3500 and
FULL SIZE VAN (1988 and Newer)
Continued
8 cyl 5.0L 1989-90 5spd, RWD or 4WD, 290 Getrag, aluminum case, integral bellhousing BK235A BK235AWS
– ball and roller input bearing, single ball output bearing
– 1st and 2nd synchro rings are single piece design
1991-94 4spd, RWD or 4WD, 290 Getrag, aluminum case, integral bellhousing BK235B BK235BWS
– single ball input and output bearings
– 1st and 2nd synchro rings are single piece design
1992-95 5spd, RWD or 4WD, NV4500, iron case, aluminum top cover BK308 BK308WS
– external clutch slave
1995-99 5spd, RWD or 4WD, 290 Getrag, aluminum case, integral bellhousing BK235B BK235DWS
– single ball input and output bearings
– 1st and 2nd synchro rings are multi-piece design
– 30mm O.D. front and rear countershaft journals
1996-98 5spd, RWD or 4WD, 290 Getrag, aluminum case, integral bellhousing BK235B BK235EWS
– single ball input and output bearings
– 1st and 2nd synchro rings are multi-piece design
– 30mm O.D. front and rear countershaft journals
1996-99 5spd, RWD or 4WD, NV4500, iron case, aluminum top cover BK308B BK308BWS
– internal clutch slave
5.7L 1988-91 4spd, RWD or 4WD, SM465, iron case, aluminum top cover BK129L BK129LWS
1988 4spd, RWD or 4WD, 290 Getrag, aluminum case, integral bellhousing BK235 BK235WS
1988-89 5spd, RWD or 4WD, 290 Getrag, aluminum case, integral bellhousing BK235 BK235WS
– double ball and roller input and output bearings
– 1st and 2nd synchro rings are single piece design
1989-90 5spd, RWD or 4WD, 290 Getrag, aluminum case, integral bellhousing BK235A BK235AWS
– ball and roller input bearing, single ball output bearing
– 1st and 2nd synchro rings are single piece design
1991-94 4spd, RWD or 4WD, 290 Getrag, aluminum case, integral bellhousing BK235B BK235BWS
– single ball input and output bearings
– 1st and 2nd synchro rings are single piece design
1992-95 5spd, RWD or 4WD, NV4500, iron case, aluminum top cover BK308 BK308WS
– external clutch slave
1995-99 5spd, RWD or 4WD, 290 Getrag, aluminum case, integral bellhousing BK235B BK235DWS
– single ball input and output bearings
– 1st and 2nd synchro rings are multi-piece design
– 30mm O.D. front and rear countershaft journals
1996-98 5spd, RWD or 4WD, 290 Getrag, aluminum case, integral bellhousing BK235B BK235EWS
– single ball input and output bearings
– 1st and 2nd synchro rings are multi-piece design
– 30mm O.D. front and rear countershaft journals
1996-99 5spd, RWD or 4WD, NV4500, iron case, aluminum top cover BK308B BK308BWS
– internal clutch slave
6.0L 1999-on 5spd, RWD or 4WD, NV4500, iron case, aluminum top cover BK308B BK308CWS
6.2L 1988-91 4spd, RWD or 4WD, SM465, iron case, aluminum top cover BK129L BK129LWS
6.5L 1992-95 5spd, RWD or 4WD, NV4500, iron case, aluminum top cover BK308 BK308WS
– external clutch slave