Sierra Denali AWD V8-6.2L (2008)
13. Remove the insulator (1) from the tail pipe hanger and remove the muffler assembly.
Installation Procedure
1. Lubricate the 5 insulators where the muffler assembly hangers are inserted in order to ease installation.
2. With the aid of an assistant, position and install the muffler assembly.
3. Install the insulator (1) to the rear tail pipe hanger.