Mercury
BOBCAT

4 cyl 140ci 1974-80 4spd, RWD, FOG, German design, iron case, 10 bolt tin top cover BK126 BK126WS

BROUGHAM, CALIENTE, CUSTOM, CYCLONE, PARK LANE, MARQUIS, MONTCLAIR and MONTEREY (Prior to 1972)

8 cyl 260ci 1962 3spd without overdrive, RWD, 259, 9 bolt rectangular side cover BK268 Inquire

1963 3spd, RWD, Tremec, 9 bolt tin top cover BK111 BK111WS

1962-64 4spd, RWD, T10, iron case, 9 bolt side cover BK166 BK166WS

292ci 1961 3spd with overdrive, RWD, T86, iron case, cast “T86” BK348 Inquire

1961-62 3spd without overdrive, RWD, 259, 9 bolt rectangular side cover BK268 Inquire

351ci 1969-71 3spd, RWD, Tremec, 9 bolt tin top cover BK111 BK111AWS

390ci 1963-65 3spd, RWD, Tremec, 9 bolt tin top cover BK111 BK111AWS

1962-64 4spd, RWD, T10, iron case, 9 bolt side cover BK166 BK166WS

1964-65 4spd, RWD, Toploader, 10 bolt tin top cover BK135HD BK135HDWS

406ci 1962-63 4spd, RWD, T10, iron case, 9 bolt side cover BK166 BK166WS

410ci 1966 3spd, RWD, Tremec, 9 bolt tin top cover BK111 BK111AWS

427ci 1963-64 4spd, RWD, T10, iron case, 9 bolt side cover BK166 BK166WS

1964-65 4spd, RWD, Toploader, 10 bolt tin top cover BK135HD BK135HDWS

CAPRI

4 cyl 98ci 1970-72 4spd, RWD, ENG , English design, iron case, 4 bolt aluminum top cover BK370 Inquire

121ci 1970-75 4spd, RWD, CAPRI, iron case, iron side cover BK170 BK170WS

140ci 1977-78 4spd, RWD, CAPRI, iron case, iron side cover BK170 BK170WS

1979 4spd, RWD, FOG, German design, iron case, 10 bolt tin top cover BK126 BK126WS

1979 4spd, RWD, SR4, aluminum case and top cover, cast “1332” BK124 BK124WS

1.6L 1991-94 5spd, FWD, CAP5, aluminum case BK277 BK277WS

– 60mm O.D. differential bearings

1991-94 5spd, FWD, CAP5T, aluminum case BK210 BK210AWS

–
Turbo only
–
68mm O.D. differential bearings

2.3L 1980-81 4spd, RWD, SR4, aluminum case and top cover, cast “1332” BK124 BK124WS

1980-83 4spd, RWD, FOG, German design, iron case, 10 bolt tin top cover BK126 BK126WS

– 1st and 2nd synchro rings are larger than 3rd and 4th rings

1983-86 4spd, RWD, FOG, German design, iron case, 10 bolt tin top cover BK126 BK126AWS

– all synchro rings are the same size

1980-84 5spd, RWD, RAP, aluminum case, 10 bolt tin top cover, cast “RF”. BK110 BK110WS

6 cyl 159ci 1972-73 4spd, RWD, CAPRI, iron case, iron side cover BK169 BK169WS

171ci 1974-78 4spd, RWD, CAPRI, iron case, iron side cover BK169 BK169WS

1979 3spd with overdrive, RWD, RUG, aluminum case, 10 bolt tin top cover BK113 BK113WS

200ci 1979 3spd with overdrive, RWD, RUG, aluminum case, 10 bolt tin top cover BK113 BK113WS

3.3L 1980-82 3spd with overdrive, RWD, RUG, aluminum case, 10 bolt tin top cover BK113 BK113WS

8 cyl 302 1979 3spd with overdrive, RWD, RUG, aluminum case, 10 bolt tin top cover BK113 BK113WS

5.0L 1979-83 3spd with overdrive, RWD, RUG, aluminum case, 10 bolt tin top cover BK113 BK113WS

1983-84 5spd, RWD, T5 non-World Class, aluminum case cast “1352” BK107 BK107WS

– all synchro rings are single piece design

1985-86 5spd, RWD, T5 World Class, aluminum case cast “1352” BK149 BK149WS

– 1st and 2nd synchro rings are multi-piece design

COMET and MONTEGO

6 cyl 144ci 1960-63 3spd, RWD, HED, iron case, 4 bolt top cover BK128 BK128WS

170ci 1961-65 3spd, RWD, HED, iron case, 4 bolt top cover BK128 BK128WS

200ci 1964-66 3spd, RWD, HED, iron case, 4 bolt top cover BK128 BK128WS

1967-77 3spd, RWD, Tremec, 9 bolt tin top cover BK111 BK111WS

250ci 1968-77 3spd, RWD, Tremec, 9 bolt tin top cover BK111 BK111WS

COMET and MONTEGO Continued

8 cyl 260ci 1963-65 3spd, RWD, Tremec, 9 bolt tin top cover BK111 BK111WS

1963-64 4spd, RWD, T10, iron case, 9 bolt side cover BK166 BK166WS

1964 4spd, RWD, Toploader, 10 bolt tin top cover BK135 BK135WS

289ci 1965-68 3spd, RWD, Tremec, 9 bolt tin top cover BK111 BK111WS

1965 4spd, RWD, T10, iron case, 9 bolt side cover BK166 BK166WS

1965-68 4spd, RWD, Toploader, 10 bolt tin top cover BK135 BK135WS

302ci 1968-70 3spd, RWD, Tremec, 9 bolt tin top cover BK111 BK111WS

– 2nd and 3rd synchro rings have 33 teeth and are smaller than 1st ring

1970-77 3spd, RWD, Tremec, 9 bolt tin top cover BK111 BK111AWS

– all synchro rings have 36 teeth and are same size

1968-73 4spd, RWD, Toploader, 10 bolt tin top cover BK135 BK135WS

351ci 1967-70 3spd, RWD, Tremec, 9 bolt tin top cover BK111 BK111AWS

1967-70 4spd, RWD, Toploader, 10 bolt tin top cover BK135 BK135WS

390ci 1966-69 3spd, RWD, Tremec, 9 bolt tin top cover BK111 BK111AWS

1966-69 4spd, RWD, Toploader, 10 bolt tin top cover BK135HD BK135HDWS

427ci 1967-69 4spd, RWD, Toploader, 10 bolt tin top cover BK135HD BK135HDWS

COUGAR

4 cyl 2.0L 1999-02 5spd, FWD, MTX75 BK334A BK334AWS

2.3L 1981 4spd, RWD, FOG, German design, iron case, 10 bolt tin top cover BK126 BK126WS

1983-84 5spd, RWD, T5 non-World Class, aluminum case, cast “1352” BK107 BK107WS

– all synchro rings are single piece design

1985-86 5spd, RWD, T5 World Class, aluminum case, cast “1352” BK149 BK149WS

– 1st-2nd synchro rings are multi-piece design, 3rd-4th rings are composite lined

6 cyl 2.5L 1999-02 5spd, FWD, MTX75 BK334A BK334AWS

3.8L 1989-90 5spd, RWD, RKE, Mazda design, aluminum case and top cover BK248B BK248BWS

8 cyl 289ci 1967 3spd, RWD, Tremec, 9 bolt tin top cover BK111 BK111AWS

– all synchro rings have 36 teeth and are same size

1967 3spd, RWD, Tremec, 9 bolt tin top cover BK111 BK111WS

– 2nd and 3rd synchro rings have 33 teeth and are smaller than 1st ring

1967 4spd, RWD, Toploader, 10 bolt tin top cover BK135 BK135WS

302ci 1968-73 3spd, RWD, Tremec, 9 bolt tin top cover BK111 BK111AWS

– all synchro rings have 36 teeth and are same size

1968-73 3spd, RWD, Tremec, 9 bolt tin top cover BK111 BK111WS

– 2nd and 3rd synchro rings have 33 teeth and are smaller than 1st ring

1968-73 4spd, RWD, Toploader, 10 bolt tin top cover BK135 BK135WS

351ci 1968-73 3spd, RWD, Tremec, 9 bolt tin top cover BK111 BK111AWS

1968-73 4spd, RWD, Toploader, 10 bolt tin top cover BK135 BK135WS

390ci 1968-69 3spd, RWD, Tremec, 9 bolt tin top cover BK111 BK111AWS

1968-69 4spd, RWD, Toploader, 10 bolt tin top cover BK135 BK135WS

428ci 1969-70 3spd, RWD, Tremec, 9 bolt tin top cover BK111 BK111AWS

1969-70 4spd, RWD, Toploader, 10 bolt tin top cover BK135 BK135WS

429ci 1971 3spd, RWD, Tremec, 9 bolt tin top cover BK111 BK111AWS

1971 4spd, RWD, Toploader, 10 bolt tin top cover BK135 BK135WS 6 cyl 2.4L 1977-79 4spd, RWD, F4W71B, integral aluminum bellhousing and case, rear load BK105 BK105WS

LYNX and LN7
4 cyl 1.6L 1981-85 4spd, FWD, MTX4, aluminum case BK158 BK158WS
– 27mm I.D. front and rear input bearings
1985-87 4spd, FWD, MTX4, aluminum case BK158L BK158LWS
– 31.75mm I.D. front and rear input bearings
1983-86 5spd, FWD, MTX5, aluminum case BK159 BK159WS
– 5th synchro ring has 24 teeth
1986-87 5spd, FWD, MTX5, aluminum case BK159 BK159AWS
– 5th synchro ring has 30 teeth
1.9L 1985-87 4spd, FWD, MTX4, aluminum case BK158L BK158LWS
1985-86 5spd, FWD, MTX5, aluminum case BK159 BK159WS
– 5th synchro ring has 24 teeth
1986-87 5spd, FWD, MTX5, aluminum case BK159 BK159AWS
– 5th synchro ring has 30 teeth
2.0L 1984-85 4spd, FWD, MTX4, aluminum case BK158 BK158WS
– 27mm I.D. front and rear input bearings
1985-87 4spd, FWD, MTX4, aluminum case BK158L BK158LWS
– 31.75mm I.D. front and rear input bearings
1985-86 5spd, FWD, MTX5, aluminum case BK159 BK159WS
– 5th synchro ring has 24 teeth
1986-87 5spd, FWD, MTX5, aluminum case BK159 BK159AWS
– 5th synchro ring has 30 teeth
MARQUISE
4 cyl 2.3L 1983 4spd, RWD, FOG, German design, iron case, 10 bolt tin top cover BK126 BK126WS
– 1st-2nd synchro rings are larger than 3rd-4th rings
1983 4spd, RWD, FOG, German design, iron case, 10 bolt tin top cover BK126 BK126AWS
– 1st-4th synchro rings are all same size
MERKUR XR4TI
4 cyl 2.3L 1985-89 5spd, RWD, XR4, aluminum case, tin top cover, cast “83GT” N/A N/A
MONARCH
4 cyl 2.3L 1980-83 4spd, RWD, FOG, German design, iron case, 10 bolt tin top cover BK126 BK126WS
– 1st-2nd synchro rings are larger than 3rd-4th rings
1983 4spd, RWD, FOG, German design, iron case, 10 bolt tin top cover BK126 BK126AWS
– 1st-4th synchro rings are all same size
6 cyl 200ci 1975-77 3spd, RWD, Tremec, 9 bolt tin top cover BK111 BK111WS
250ci 1975-76 3spd, RWD, Tremec, 9 bolt tin top cover BK111 BK111WS
1977-80 3spd with overdrive, RWD, RUG, iron case, 10 bolt tin top cover BK113 BK113AWS
8 cyl 302ci 1977-80 3spd with overdrive, RWD, RUG, iron case, 10 bolt tin top cover BK113 BK113AWS
MYSTIQUE
4 cyl 2.0L 1995-00 5spd, FWD, MTX75 BK334 BK334WS
6 cyl 2.5L 1999-02 5spd, FWD, MTX75 BK334A BK334AWS
SABLE
4 cyl 2.5L 1986-90 5spd, FWD, MTX5, aluminum case BK159 BK159AWS
TOPAZ
4 cyl 2.0L 1984 4spd, FWD, MTX4, aluminum case BK158 BK158WS
1984-86 5spd, FWD, MTX5, aluminum case BK159 BK159WS
– 5th synchro ring has 24 teeth
1986-87 5spd, FWD, MTX5, aluminum case BK159 BK159AWS
– 5th synchro ring has 30 teeth
2.3L 1984 4spd, FWD, MTX4, aluminum case BK158 BK158WS
1984-86 5spd, FWD, MTX5, aluminum case BK159 BK159WS
– 5th synchro ring has 24 teeth
1986-89 5spd, FWD, MTX5, aluminum case BK159 BK159AWS
– 5th synchro ring has 30 teeth
1990-94 5spd, FWD, MTX5, aluminum case BK159 BK159LWS
– 1st-4th synchro rings are fiber lined
6 cyl 3.0L 1992-94 5spd, FWD, MTX5, aluminum case BK159C BK159CWS
TRACER
4 cyl 1.6L 1987-89 4spd, FWD, TR4, all aluminum BK211 BK211AWS
1987-89 5spd, FWD, TR5, all aluminum BK211 BK211WS
1.8L 1991-94 5spd, FWD, TR5A, DOHC, aluminum case, synchro reverse ring BK210 BK210AWS
1.9L 1991-94 5spd, FWD, TR5B, SOHC, aluminum case, no synchro reverse ring BK277 BK277WS
– 25.4mm I.D. input ball bearing
1994-96 5spd, FWD, TR5B, SOHC, aluminum case, synchro reverse ring BK277A BK277AWS
– 24.9mm I.D. input ball bearing
2.0L 1997-99 5spd, FWD, TR5C, aluminum case, synchro reverse ring BK210 BK210AWS
ZEPHYR
4 cyl 140ci 1978-79 4spd, RWD, FOG, German design, iron case, 10 bolt tin top cover BK126 BK126WS
2.3L 1980-83 4spd, RWD, FOG, German design, iron case, 10 bolt tin top cover BK126 BK126WS
6 cyl 200ci 1978 3spd, RWD, Tremec, 9 bolt tin top cover BK111 BK111WS
1979 3spd with overdrive, RWD, RUG, iron case, 10 bolt tin top cover BK113 BK113AWS
3.3L 1980-83 3spd with overdrive, RWD, RUG, iron case, 10 bolt tin top cover BK113 BK113AWS
8 cyl 4.4L 1980-82 3spd with overdrive, RWD, RUG, iron case, 10 bolt tin top cover BK113 BK113AWS
302ci 1978-79 3spd with overdrive, RWD, RUG, iron case, 10 bolt tin top cover BK113 BK113AWS
MOUNTAINEER
6 cyl 4.0L 1998-01 BW4405, aluminum cases, chain driven BK4405 TSK-4405
2002-on BW4410, aluminum cases, chain driven BK4410 TSK-4410
8 cyl 4.6L 2002-on BW4410, aluminum cases, chain driven BK4410 TSK-4410
– single speed All Wheel Drive
5.0L 1997-01 BW4404, aluminum cases, chain driven BK4404 TSK-4404
– single speed All Wheel Drive