For 1990-2009 cars

### Transmission Case

#### Tools Required

• | J 36190 Drive Handle

• | J 39435 Mainshaft and Countershaft Bearing Race Installer

• | J 39439-4 Bushing Installer

• | J 39439-3 Bushing Installer

1. Install the lST/2ND and the 3RD/4TH shift shaft bushings. Use the J 36190 , the J 39439-4 , and the J 39439-3 .
2. Install the mainshaft bearing race. Use the J 8092 and the J 39435 .
3. Install the countershaft bearing race. Use the J 8092 and the J 39435 .
4. Install the dowel pins.
5. Install the backup lamp switch.

Tighten
Tighten the switch to 27 N·m (20 lb ft).

Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

6. Apply thread sealer to the oil fill plug threads. Use GM P/N 12346004 or the equivalent.
7. Install the oil fill plug.

Tighten
Tighten the oil fill plug to 18 N·m (13 lb ft).

8. Install the guide plate and the guide plate bolts.

Tighten
Tighten the bolts to 22 N·m (16 Ib ft).

### Adapter Plate

#### Tools Required

• | J 39433 Input Shaft Seal Installer

• | J 39437 Bushing lnstaller

1. Install the dowel pins.
2. Install the 1ST/2ND, 3RD/4TH speed shift shaft bushing. Use the J 39437 .
3. Install the input shaft seal. Use the J 39433 .