Sierra Classic 3500 4WD V8-6.0L (2007)
Exhaust Pipe: Service and Repair
Exhaust Manifold Pipe Replacement (6.0L, and 8.1L Engines)
Removal Procedure
1. Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle.
2. Support the transmission with a suitable transmission jack.
3. Remove the transmission mount to transmission support nuts.
4. Raise the transmission off of the transmission support.
5. Remove the transmission support crossmember bolts.
6. Remove the transmission support crossmember.
7. Depending on which side is being replaced, perform one of the following steps:
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Remove the exhaust muffler nuts.
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Loosen the exhaust pipe clamp.
8. Remove the necessary exhaust system hangers so that the pipes can be separated.
9. Use a jack stand to support the exhaust.
