GEO
METRO (Same as Chevrolet)
3 cyl 1.0L 1989-00 5spd, FWD, MV3, aluminum case, 8 bolt rear cover BK264 BK264WS
4 cyl 1.3L 1992-00 5spd, FWD, MV3, aluminum case, 8 bolt rear cover BK264 BK264WS
PRIZM (Same as Chevrolet)
4 cyl 1.6L 1989-91 5spd, FWD, C51, aluminum cases and 5th cover BK191 BK191WS
– 1st-2nd and 3rd-4th synchro assemblies use wire type springs
1992-97 5spd, FWD, C51, aluminum cases and 5th cover BK191 BK191AWS
– 1st-2nd and 3rd-4th synchro assemblies use coil type springs
1.8L 1998-on 5spd, FWD, C51, aluminum cases and 5th cover BK191 BK191AWS
STORM
4 cyl 1.6L 1990-93 5spd, FWD, MR8, Isuzu design, 7 bolt rear tin cover over 5th gears BK194 BK194WS
– all synchro rings are single piece design
1990-93 5spd, FWD, MR8, Isuzu design, 7 bolt rear tin cover over 5th gears BK194 BK194AWS
– 1st and 2nd synchro rings are multi-piece design
1.8L 1990-93 5spd, FWD, MR8, Isuzu design, 7 bolt rear tin cover over 5th gears BK194 BK194WS
– all synchro rings are single piece design
1990-93 5spd, FWD, MR8, Isuzu design, 7 bolt rear tin cover over 5th gears BK194 BK194AWS
– 1st and 2nd synchro rings are multi-piece design
TRACKER (Same as Chevrolet)
4 cyl 1.6L 1989-on 5spd, RWD, SIDE-A/VIT5-B, aluminum case, main case splits horizontally BK293A BK293AWS
1989-98 5spd, 4WD, SIDE-B, aluminum case, main case splits horizontally BK293 BK293WS
– 72mm O.D. center mainshaft bearing
1998-on 5spd, 4WD, VIT5-A, aluminum case, main case splits horizontally BK293B BK293BWS
– 65mm O.D. center mainshaft bearing
2.0L 1999-on 5spd, RWD, VIT5-B, aluminum case, main case splits horizontally BK293C BK293CWS
1999-on 5spd, 4WD, VIT5-A, aluminum case, main case splits horizontally BK293B BK293BWS
TRACKER (Same as Chevrolet)
4 cyl 1.6L 1989-on G130, aluminum cases, chain drive BK236A TSK-236A
2.0L 1999-on G130, aluminum cases, chain drive BK236A TSK-236A