Removal Procedure
WARNING: This page is about a different car, the 2008 GMC Sierra, 2008 GMC Cab & Chassis Sierra, 2008 Chevrolet Silverado, and 2008 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
- If equipped with a 6.0L engine, remove the exhaust manifold pipe. Refer to Exhaust Manifold Pipe Replacement (6.0L - Cab/Chassis) .
- If equipped with a 6.0L engine, remove the left catalytic converter. Refer to Catalytic Converter Replacement - Left Side (6.0L - Cab/Chassis) .
- If equipped with a 6.6L engine, remove the catalytic converter. Refer to Catalytic Converter Replacement (4.3L) or Catalytic Converter Replacement (4.8L, 5.3L, 6.0L, 6.2L) or Catalytic Converter Replacement (6.6L) .
- If equipped with a 4L80-E automatic transmission, regular production option (RPO) MT1, remove the exhaust pipe hanger bracket bolts and bracket.
- If equipped with a Allison® automatic transmission, RPO MW7, remove the exhaust pipe hanger bracket bolt/stud and bracket.
- If equipped with a 6L90-E automatic transmission, RPO MYD, remove the exhaust pipe hanger bracket bolts and bracket.