Avalanche 4WD V8-5.3L (2011)
21. With the aid of an assistant, remove the insulator from the exhaust system hanger near the resonator.
22. Remove the muffler assembly.
23. If the vehicle is a Yukon XL, Yukon Denali XL, Escalade ESV, or Escalade EXT perform the following steps:
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Lubricate the insulators where the muffler assembly hangers are inserted in order to ease in removal.
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With the aid of an assistant, remove the insulators from the exhaust system hangers (3, 4, and 5).
