Sierra 3500 Denali 2WD V8-6.0L (2011)
12. Lubricate the 5 insulators where the muffler assembly hangers are inserted in order to ease removal.
13. With the aid of an assistant, remove the insulators (1-3) from the front, intermediate and rear muffler assembly hangers.
14. Remove the insulator (1) from the tail pipe hanger and remove the muffler assembly.
Installation Procedure
