This is a Transmission Rebuild Kit for a GMC/Chevy with the 4 Speed Rear Wheel Drive or Four Wheel Drive T4C Transmission This Standard Rebuild Kit is made by TRANSPARTS You can identify this transmission by its aluminum case & top cover and a cast of "1353" on the case. This transmission is known as the T4C and uses a ball input bearing and a ball output bearing. This transmission was found in the following applications: Blazer (S Series) 4 Cylinder 1.9L RWD 1983-86 Blazer (S Series) 4 Cylinder 2.0L RWD 1983-84 Blazer (S Series) 4 Cylinder 2.2L RWD 1984-85 Blazer (S Series) 4 Cylinder 2.5L RWD or 4WD 1984-87 Blazer (S Series) 6 Cylinder 2.8L RWD or 4WD 1983-85 S10 4 Cylinder 1.9L RWD 1982-86 S10 4 Cylinder 2.0L RWD 1983-84 S10 4 Cylinder 2.2L RWD 1984-85 S10 4 Cylinder 2.5L RWD or 4WD 1984-87 S10 6 Cylinder 2.8L RWD or 4WD 1982-87 Jimmy - S Series Compact 4 Cylinder 1.9L RWD 1983-86 Jimmy - S Series Compact 4 Cylinder 2.0L RWD 1983-84 Jimmy - S Series Compact 4 Cylinder 2.2L RWD 1984-85 Jimmy - S Series Compact 4 Cylinder 2.5L RWD or 4WD 1984-87 Jimmy - S Series Compact 6 Cylinder 2.8L RWD or 4WD 1983-87 S15 - S Series Compact Truck 4 Cylinder 1.9L RWD 1982-86 S15 - S Series Compact Truck 4 Cylinder 2.0L RWD 1983-84 S15 - S Series Compact Truck 4 Cylinder 2.2L RWD 1984-85 S15 - S Series Compact Truck 4 Cylinder 2.5L RWD or 4WD 1984-87 S15 - S Series Compact Truck 6 Cylinder 2.8L RWD or 4WD 1982-87 This kit includes all New Bearings, Seals, Small Parts Kit and High Quality Synchro Rings. Part# BK148WS Don't get caught with a kit of lesser Quality!