Chevrolet Silverado / GMC Sierra. Manual - part 870
2. Install the plug and O-ring into the converter housing.
Tighten: Tighten the plug to 12 N.m (108 lb in).
TRANSMISSION MOUNT REPLACEMENT
Removal Procedure
2008 Chevrolet Silverado 1500
2008 TRANSMISSION Automatic Transmission - Allison - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra &
Silverado
Fig. 105: Identifying Transmission Mount Nuts
Courtesy of GENERAL MOTORS CORP.
1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .
2. Support the transmission with a transmission jack.
3. Remove the transmission mount to the transmission support retaining nut or nuts.
2008 Chevrolet Silverado 1500
2008 TRANSMISSION Automatic Transmission - Allison - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra &
Silverado
Fig. 106: Locating Transmission Mount Bolts
Courtesy of GENERAL MOTORS CORP.
4. Raise the transmission to take the weight off of the mount.
5. Remove the transmission mount to the transmission or transfer case adapter mounting bolts
(1).
6. Raise the transmission just enough to remove the transmission mount.
7. Remove the transmission mount from the vehicle.
Installation Procedure
2008 Chevrolet Silverado 1500
2008 TRANSMISSION Automatic Transmission - Allison - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra &
Silverado
Fig. 107: Locating Transmission Mount Bolts
Courtesy of GENERAL MOTORS CORP.
1. Install the transmission mount to the vehicle.
2. Install the transmission mount to the transmission or transfer case adapter mounting bolts
(1).
Tighten: Tighten the bolts to 50 N.m (37 lb ft).
NOTE:
Refer to Fastener Notice .
2008 Chevrolet Silverado 1500
2008 TRANSMISSION Automatic Transmission - Allison - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra &
Silverado