Installation Procedure
WARNING: This page is about a different car, the 2008 GMC Sierra, 2008 GMC Cab & Chassis Sierra, 2008 Chevrolet Silverado, and 2008 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
- If the vehicle is a non HD, perform the following steps, otherwise proceed to step 5:
- Lubricate the 4 insulators where the muffler assembly hangers are inserted in order to ease installation.
- With the aid of an assistant, position and install the muffler assembly.
- Install the insulators (1-4) to the front, intermediate, and rear muffler assembly hangers.
- If the vehicle is a HD, perform the following steps:
- Lubricate the 3 insulators where the muffler assembly hangers are inserted in order to ease installation.
- With the aid of an assistant, position and install the muffler assembly.
- Install the insulators (1-3) to the front, intermediate, and rear muffler assembly hangers.
- Install the catalytic converter to exhaust muffler nuts.
Tighten: Tighten the nuts to 45 N.m (33 lb ft).
- Raise the rear axle using the adjustable jack stands, if necessary.
- Install the rear shock absorber lower bolts and nuts, if necessary.
Tighten: Tighten the bolts to 95 N.m (70 lb ft).
- If equipped with a 10.5 inch ring gear, install the rear axle vent hose to the rear axle, if necessary.
- Connect the vent hose swivel clip to the rear brake crossover pipe, if necessary.
- If equipped with a 8.6 or a 9.5 inch ring gear, install the rear axle vent hose to the rear axle, if necessary.
- Install the vent hose swivel clip to the rear brake crossover pipe, if necessary.
- Remove the adjustable jack stands from under the rear axle, if necessary.
- Install the spare tire, if necessary.
- Lower the vehicle.
NOTE:
Refer to Fastener Notice
.