6L50/6L80/6L90 - Automatic Transmission

Transmission Mount Replacement (Rear Wheel Drive)

Removal Procedure

1. Raise and support the vehicle. Refer to Vehicle Lifting.
2. Remove the exhaust system.
3. Support the transmission with a suitable jack and a block of wood.





4. Remove the transmission vent hose from the retainers (6) on the mount assembly.
5. Remove the transmission mount support to body mounting bolts.





6. Remove the transmission mount support to transmission mounting bolts.
7. Remove the transmission mount support assembly from the vehicle.

Installation Procedure

1. Install the transmission mount support assembly to the vehicle.





Notice: Refer to Fastener Notice.

2. Install the transmission mount support to transmission mounting bolts.

Tighten the bolts to 60 N.m (44 lb ft).

3. Install the transmission mount support to body mounting bolts.

Tighten the bolts to 60 N.m (44 lb ft).





4. Install the transmission vent hose to the retainers (6) on the mount assembly.
5. Remove the transmission jack.
6. Install the exhaust system.
7. Lower the vehicle.