Sierra 3500 Denali 4WD V8-6.0L (2011)
10. Remove the catalytic converter to muffler nuts.
11. If equipped with a exhaust muffler clamp (Norma), loosen the catalytic to exhaust muffler clamp nut (1).
GMC Workshop Service and Repair Manuals
Exhaust Muffler Replacement (1500 Series V6 or V8)|Page 2998 >
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