Sierra Classic 2500 4WD V8-8.1L (2007)
Exhaust Pipe/Muffler Hanger: Service and Repair
Exhaust Hanger Mounting Bracket Replacement (6.0L, 6.6L, and 8.1L Engines)
Removal Procedure
1. Remove the exhaust manifold pipe.
2. Remove the catalytic converter.
3. If equipped with a 4L60-E automatic transmission, remove the exhaust pipe hanger bracket bolts.
4. If equipped with a 6.0L engine and a 4L80-E automatic transmission, remove the exhaust pipe hanger bracket bolts.
5. If equipped with a 6.0L, or 8.1L engine and a 4L80-E automatic transmission, remove the exhaust pipe hanger bracket bolts.
