Chevrolet Silverado / GMC Sierra. Service manual — part 1825

Fig. 126: Identifying Transmission Mount Nuts
Courtesy of GENERAL MOTORS CORP.

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.

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Exhaust - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado

4. Raise the transmission off of the transmission support.

Fig. 127: Transmission Support Crossmember (6.0L, 6.6L, and 8.1L Engines)
Courtesy of GENERAL MOTORS CORP.

5. Remove the transmission support crossmember bolts.

6. Remove the transmission support crossmember.

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Exhaust - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado

Fig. 128: View Of Catalytic Converter, Particulate Filter & Nuts
Courtesy of GENERAL MOTORS CORP.

7. Remove the catalytic converter to particulate filter nuts.

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Exhaust - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado

Fig. 129: View Of Turbocharger Exhaust Pipe & Clamps
Courtesy of GENERAL MOTORS CORP.

8. Loosen the turbocharger exhaust pipe to catalytic converter clamp.

9. Slide the clamp up onto the turbocharger exhaust pipe.

10. Remove the catalytic converter.

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Exhaust - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado