Silverado 3500 2WD V8-6.0L (2007)
5. If the vehicle is a HD, perform the following steps:
6. Lubricate the 3 insulators where the muffler assembly hangers are inserted in order to ease installation.
7. With the aid of an assistant, position and install the muffler assembly.
8. Install the insulators (1-3) to the front, intermediate, and rear muffler assembly hangers.
Notice: Refer to Fastener Notice.
9. Install the catalytic converter to exhaust muffler nuts.
Tighten the nuts to 45 N.m (33 lb ft).
