Oldsmobile
ACHIEVA
4 cyl 2.3L 1992-94 5spd, FWD, MR8, Isuzu design, 7 bolt rear tin cover over 5th gears BK194 BK194AWS
– Quad 4
– external hydraulic slave cylinder
1992-94 5spd, FWD, MR10, Muncie design, 9 bolt flat cover over 5th gears BK234 BK234WS
– Quad 4 High Output
– external hydraulic slave cylinder
1995 5spd, FWD, MR8, Isuzu design, 7 bolt rear tin cover over 5th gears BK194B BK194BWS
– Quad 4
– internal hydraulic slave cylinder
2.4L 1996-97 5spd, FWD, MR8, Isuzu design, 7 bolt rear tin cover over 5th gears BK194B BK194BWS
ALERO
4 cyl 2.3L 2002-on 5spd, FWD, M86 BK442 BK442WS
2.4L 2000-01 5spd, FWD, M86 BK442 BK442WS
CALAIS
4 cyl 2.3L 1988-91 5spd, FWD, MR8, Isuzu design, 7 bolt rear tin cover over 5th gears BK194 BK194AWS
– Quad 4
1988-91 5spd, FWD, MR10, Muncie design, 9 bolt flat cover over 5th gears BK234 BK234WS
– Quad 4
2.5L 1985-91 5spd, FWD, MR8, Isuzu design, 7 bolt rear tin cover over 5th gears BK194 BK194WS
– all synchro rings are single piece design
1985-91 5spd, FWD, MR8, Isuzu design, 7 bolt rear tin cover over 5th gears BK194 BK194AWS
– 1st and 2nd synchro rings are multi-piece design
CUTLASS, CRUISER 88, DELMONT, DELTA, DYNAMIC, F88,
JETSTAR, OMEGA, STARFIRE, VISTA, and 442
4 cyl 140ci 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
1976-77 5spd, RWD, T50, aluminum case, rear load, cast “1338” NA NA
151ci 1977-79 3spd, RWD, Saginaw, iron case, 7 bolt side cover BK115 BK115AWS
1977-79 4spd, RWD, Saginaw, iron case, 7 bolt side cover BK115 BK115WS
1977-79 5spd, RWD, T50, aluminum case, rear load, cast “1338” NA NA
2.3L 1990 5spd, FWD, MR8, Isuzu design, 7 bolt rear tin cover over 5th gears BK194 BK194AWS
– Quad 4
1990 5spd, FWD, MR10, Muncie design, 9 bolt flat cover over 5th gears BK234 BK234WS
– Quad 4
2.5L 1980-84 3spd, RWD, Saginaw, iron case, 7 bolt side cover BK115 BK115AWS
1980-84 4spd, RWD, Saginaw, iron case, 7 bolt side cover BK115 BK115WS
1980 5spd, RWD, T50, aluminum case, rear load, cast “1338” NA NA
6 cyl 225ci 1964-65 3spd without overdrive, RWD, 318, light duty Muncie, 4 bolt side cover BK131A Inquire
1964-65 3spd with overdrive, RWD, 319, light duty Muncie, 4 bolt side cover BK140 Inquire
1965-66 3spd without overdrive, RWD, T85, iron case, cast “T85” BK345 BK345WS
1965-66 3spd with overdrive, RWD, T85, iron case, cast “T85” BK345A BK345AWS
1966-67 3spd, RWD, Saginaw, iron case, 7 bolt side cover BK115 BK115AWS
231ci 1975-79 3spd, RWD, Saginaw, iron case, 7 bolt side cover BK115 BK115AWS
1975-79 4spd, RWD, Saginaw, iron case, 7 bolt side cover BK115 BK115WS
1976-79 5spd, RWD, T50, aluminum case, rear load, cast “1338” NA NA
250ci 1976 3spd, RWD, Saginaw, iron case, 7 bolt side cover BK115 BK115AWS
1976 4spd, RWD, Saginaw, iron case, 7 bolt side cover BK115 BK115WS
1976 5spd, RWD, T50, aluminum case, rear load, cast “1338” NA NA
2.8L 1980-88 4spd, FWD, MR2 BK136 BK136WS
1983-89 5spd, FWD, MR8, Isuzu design, 7 bolt rear tin cover over 5th gears BK194 BK194WS
– all synchro rings are single piece design
1983-89 5spd, FWD, MR8, Isuzu design, 7 bolt rear tin cover over 5th gears BK194 BK194AWS
– 1st and 2nd synchro rings are multi-piece design
1984-89 5spd, FWD, MR10, Muncie design, 9 bolt flat cover over 5th gears BK234 BK234WS
– 1st and 2nd synchro rings are multi-piece design
3.1L 1989-90 5spd, FWD, MR10, Muncie design, 9 bolt flat cover over 5th gears BK234 BK234WS
CUTLASS, CRUISER 88, DELMONT, DELTA, DYNAMIC, F88,
JETSTAR, OMEGA, STARFIRE, VISTA, and 442
Continued
8 cyl 260ci 1975-79 3spd, RWD, Saginaw, iron case, 7 bolt side cover BK115 BK115AWS
1975-79 4spd, RWD, Saginaw, iron case, 7 bolt side cover BK115 BK115WS
1976-79 5spd, RWD, T50, aluminum case, rear load, cast “1338” NA NA
305ci 1975-79 3spd, RWD, Saginaw, iron case, 7 bolt side cover BK115 BK115AWS
1975-79 4spd, RWD, Saginaw, iron case, 7 bolt side cover BK115 BK115WS
1976-79 5spd, RWD, T50, aluminum case, rear load, cast “1338” NA NA
330ci 1965 3spd without overdrive, RWD, 318, light duty Muncie, 4 bolt side cover BK131A Inquire
1965 3spd with overdrive, RWD, 319, light duty Muncie, 4 bolt side cover BK140 Inquire
1965-66 3spd without overdrive, RWD, T85, iron case, cast “T85” BK345 BK345WS
1965-66 3spd with overdrive, RWD, T85, iron case, cast “T85” BK345A BK345AWS
1966-67 3spd, RWD, Tremec, iron case, 9 bolt top cover BK111 BK111WS
1966-67 3spd, RWD, Saginaw, iron case, 7 bolt side cover BK115 BK115AWS
1965-67 4spd, RWD, M21, Muncie, aluminum case, 7 bolt side cover BK117 BK117WS
– 7/8 diameter countershaft pin
1965-67 4spd, RWD, M21, Muncie, aluminum case, 7 bolt side cover BK116 BK116WS
– 1 diameter countershaft pin
350ci 1968-73 3spd, RWD, Saginaw, iron case, 7 bolt side cover BK115 BK115AWS
– 9 5/8 case
1968-70 3spd, RWD, Tremec, iron case, 9 bolt top cover BK111 BK111WS
1970-71 3spd, RWD, HD Muncie 330, iron case, 7 bolt side cover BK289 BK289WS
– 11 case
1968-73 4spd, RWD, M21, Muncie, aluminum case, 7 bolt side cover BK116 BK116WS
1968-73 4spd, RWD, M21, Muncie, aluminum case, 7 bolt side cover BK116HD BK116HDWS
– max load front and rear mainshaft bearings
400ci 1970-71 3spd, RWD, HD Muncie 330, iron case, 7 bolt side cover BK289 BK289WS
1966-70 4spd, RWD, M21, Muncie, aluminum case, 7 bolt side cover BK116 BK116WS
1966-70 4spd, RWD, M21, Muncie, aluminum case, 7 bolt side cover BK116HD BK116HDWS
– max load front and rear mainshaft bearings
425ci 1970-71 3spd, RWD, HD Muncie 330, iron case, 7 bolt side cover BK289 BK289WS
1966-70 4spd, RWD, M21, Muncie, aluminum case, 7 bolt side cover BK116 BK116WS
455ci 1965-73 4spd, RWD, M21, Muncie, aluminum case, 7 bolt side cover BK116 BK116WS
1965-73 4spd, RWD, M21, Muncie, aluminum case, 7 bolt side cover BK116HD BK116HDWS
– max load front and rear mainshaft bearings
FIRENZA
4 cyl 1.8L 1982-86 4spd, FWD, MR2 BK136 BK136WS
1983-86 5spd, FWD, MR8, Isuzu design, 7 bolt rear tin cover over 5th gears BK194 BK194WS
– all synchro rings are single piece design
1983-86 5spd, FWD, MR8, Isuzu design, 7 bolt rear tin cover over 5th gears BK194 BK194AWS
– 1st and 2nd synchro rings are multi-piece design
2.0L 1983-87 4spd, FWD, MR2 BK136 BK136WS
1983-87 5spd, FWD, MR8, Isuzu design, 7 bolt rear tin cover over 5th gears BK194 BK194WS
– all synchro rings are single piece design
1983-87 5spd, FWD, MR8, Isuzu design, 7 bolt rear tin cover over 5th gears BK194 BK194AWS
– 1st and 2nd synchro rings are multi-piece design
6 cyl 2.8L 1985-87 5spd, FWD, MR10, Muncie design, 9 bolt flat cover over 5th gears BK234 BK234WS
BRAVADA
6 cyl 4.2L 2002-on NP126, aluminum cases, chain driven BK243 TSK-226
4.3L 1991-97 BW4472, aluminum cases, chain driven BK1372 TSK-1372
1998-01 NP136, aluminum cases, chain driven BK333 TSK-136
CUTLASS, CRUISER 88, DELMONT, DELTA, DYNAMIC, F88,
JETSTAR, OMEGA, STARFIRE, VISTA, and 442
Continued
8 cyl 260ci 1975-79 3spd, RWD, Saginaw, iron case, 7 bolt side cover BK115 BK115AWS
1975-79 4spd, RWD, Saginaw, iron case, 7 bolt side cover BK115 BK115WS
1976-79 5spd, RWD, T50, aluminum case, rear load, cast “1338” NA NA
305ci 1975-79 3spd, RWD, Saginaw, iron case, 7 bolt side cover BK115 BK115AWS
1975-79 4spd, RWD, Saginaw, iron case, 7 bolt side cover BK115 BK115WS
1976-79 5spd, RWD, T50, aluminum case, rear load, cast “1338” NA NA
330ci 1965 3spd without overdrive, RWD, 318, light duty Muncie, 4 bolt side cover BK131A Inquire
1965 3spd with overdrive, RWD, 319, light duty Muncie, 4 bolt side cover BK140 Inquire
1965-66 3spd without overdrive, RWD, T85, iron case, cast “T85” BK345 BK345WS
1965-66 3spd with overdrive, RWD, T85, iron case, cast “T85” BK345A BK345AWS
1966-67 3spd, RWD, Tremec, iron case, 9 bolt top cover BK111 BK111WS
1966-67 3spd, RWD, Saginaw, iron case, 7 bolt side cover BK115 BK115AWS
1965-67 4spd, RWD, M21, Muncie, aluminum case, 7 bolt side cover BK117 BK117WS
– 7/8 diameter countershaft pin
1965-67 4spd, RWD, M21, Muncie, aluminum case, 7 bolt side cover BK116 BK116WS
– 1 diameter countershaft pin
350ci 1968-73 3spd, RWD, Saginaw, iron case, 7 bolt side cover BK115 BK115AWS
– 9 5/8 case
1968-70 3spd, RWD, Tremec, iron case, 9 bolt top cover BK111 BK111WS
1970-71 3spd, RWD, HD Muncie 330, iron case, 7 bolt side cover BK289 BK289WS
– 11 case
1968-73 4spd, RWD, M21, Muncie, aluminum case, 7 bolt side cover BK116 BK116WS
1968-73 4spd, RWD, M21, Muncie, aluminum case, 7 bolt side cover BK116HD BK116HDWS
– max load front and rear mainshaft bearings
400ci 1970-71 3spd, RWD, HD Muncie 330, iron case, 7 bolt side cover BK289 BK289WS
1966-70 4spd, RWD, M21, Muncie, aluminum case, 7 bolt side cover BK116 BK116WS
1966-70 4spd, RWD, M21, Muncie, aluminum case, 7 bolt side cover BK116HD BK116HDWS
– max load front and rear mainshaft bearings
425ci 1970-71 3spd, RWD, HD Muncie 330, iron case, 7 bolt side cover BK289 BK289WS
1966-70 4spd, RWD, M21, Muncie, aluminum case, 7 bolt side cover BK116 BK116WS
455ci 1965-73 4spd, RWD, M21, Muncie, aluminum case, 7 bolt side cover BK116 BK116WS
1965-73 4spd, RWD, M21, Muncie, aluminum case, 7 bolt side cover BK116HD BK116HDWS
– max load front and rear mainshaft bearings
FIRENZA
4 cyl 1.8L 1982-86 4spd, FWD, MR2 BK136 BK136WS
1983-86 5spd, FWD, MR8, Isuzu design, 7 bolt rear tin cover over 5th gears BK194 BK194WS
– all synchro rings are single piece design
1983-86 5spd, FWD, MR8, Isuzu design, 7 bolt rear tin cover over 5th gears BK194 BK194AWS
– 1st and 2nd synchro rings are multi-piece design
2.0L 1983-87 4spd, FWD, MR2 BK136 BK136WS
1983-87 5spd, FWD, MR8, Isuzu design, 7 bolt rear tin cover over 5th gears BK194 BK194WS
– all synchro rings are single piece design
1983-87 5spd, FWD, MR8, Isuzu design, 7 bolt rear tin cover over 5th gears BK194 BK194AWS
– 1st and 2nd synchro rings are multi-piece design
6 cyl 2.8L 1985-87 5spd, FWD, MR10, Muncie design, 9 bolt flat cover over 5th gears BK234 BK234WS
BRAVADA
6 cyl 4.2L 2002-on NP126, aluminum cases, chain driven BK243 TSK-226
4.3L 1991-97 BW4472, aluminum cases, chain driven BK1372 TSK-1372
1998-01 NP136, aluminum cases, chain driven BK333 TSK-136