Chevrolet Silverado / GMC Sierra. Service manual — part 1826

Installation Procedure

Fig. 130: View Of Turbocharger Exhaust Pipe & Clamps
Courtesy of GENERAL MOTORS CORP.

1. Apply water based lubricant to the exhaust pipe hanger bracket, in order to aid in

installation.

2008 Chevrolet Silverado 1500

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

2. Install the catalytic converter.

3. Slide the down turbocharger exhaust pipe to catalytic converter clamp.

4. Tighten the turbocharger exhaust pipe to catalytic converter clamp.

Tighten: Tighten the clamp to 12 N.m (106 lb in).

Fig. 131: View Of Catalytic Converter, Particulate Filter & Nuts
Courtesy of GENERAL MOTORS CORP.

5. Install the catalytic converter to particulate filter nuts.

Tighten: Tighten the nuts to 45 N.m (33 lb ft).

NOTE:

Refer to Fastener Notice .

2008 Chevrolet Silverado 1500

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

Fig. 132: Transmission Support Crossmember (6.0L, 6.6L, and 8.1L Engines)
Courtesy of GENERAL MOTORS CORP.

6. Install the transmission support crossmember.

7. Install the transmission support crossmember bolts.

Tighten: Tighten the bolts to 95 N.m (70 lb ft).

2008 Chevrolet Silverado 1500

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

Fig. 133: Identifying Transmission Mount Nuts
Courtesy of GENERAL MOTORS CORP.

8. Lower the transmission onto the transmission support.

9. Install the transmission mount to transmission support nuts.

2008 Chevrolet Silverado 1500

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