Silverado Classic 2500 4WD V8-6.6L DSL Turbo (2007)
19. If equipped with a 6.6L engine, gently pry up the catalytic converter coupling clip (1) (on the muffler end) in order to disengage the locator button
(3) from the coupling clip.
20. With the aid of an assistant, slide the muffler rearward until the locator button is fully disengaged.
21. If equipped with a 6.6L engine, remove the insulators from the frame hangers with the aid of an assistant.
22. Remove the exhaust muffler gasket, if necessary.
23. Remove the insulators from the muffler hangers.
24. If equipped with a 6.0L or 8.1L engine, remove the oxygen sensor if the muffler is being replaced.
25. If the muffler is NOT being replaced as an assembly, the band clamp MUST be replaced. Perform the following:
1. Mark the position of the band clamp on the intermediate exhaust pipe.
2. Remove the band clamp from the exhaust pipe by grinding the weld.
3. Install a NEW band clamp onto the exhaust pipe.
Installation Procedure
