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Chevrolet Silverado / GMC Sierra. Manual - part 1827
Tighten: Tighten the bolts to 40 N.m (30 lb ft).
10. Remove the support from the transmission.
11. Lower the vehicle.
CATALYTIC CONVERTER REPLACEMENT - LEFT SIDE (6.0L - CAB/CHASSIS)
Removal Procedure
2008 Chevrolet Silverado 1500
2008 ENGINE Engine Exhaust - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
Fig. 134: 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. 135: View Of Transmission Support Crossmember & Bolts
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. 136: View Of Exhaust Muffler, Exhaust Manifold Pipe, Gasket & Nuts
Courtesy of GENERAL MOTORS CORP.
7. Loosen the exhaust muffler clamp (3).
8. Separate any necessary exhaust muffler insulators so that the pipe may be separated from the
muffler.
9. Use a jack stand to support the muffler.
2008 Chevrolet Silverado 1500
2008 ENGINE Engine Exhaust - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
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