Chevrolet Silverado / GMC Sierra. Service manual — part 494

3. Install NEW flywheel bolts.

NOTE:

This component uses bolts with a preapplied molybdenum
disulfide coating for thread lubrication. Do not remove the
coating or use any additional lubricant. Improperly lubricated
threads will adversely affect the bolt torque and clamp load.
Improper bolt torque and clamp load can lead to engine
damage.

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Mechanical - 6.6L - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado

Fig. 280: Flywheel Bolt Tightening Sequence
Courtesy of GENERAL MOTORS CORP.

4. Tighten the flywheel bolts in the proper sequence.

Tighten:

1. Tighten the bolts a first pass to 79 N.m (58 lb ft).

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Mechanical - 6.6L - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado

2. Tighten the bolts a second pass to 60 degrees using J 45059 .

3. Tighten the bolts a final pass an additional 60 degrees using J 45059 .

Fig. 281: Locking Flywheel Using J 44643
Courtesy of GENERAL MOTORS CORP.

5. Remove J 44643 from the flywheel. See Special Tools .

6. Install the transmission. Refer to Transmission Replacement for the 4L60-E/4L65-

E/4L70-E transmission, Transmission Replacement for the 4L50/4L80/4L90
transmission, or Transmission Replacement for the Allison transmission.

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Mechanical - 6.6L - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado

LOWER OIL PAN REPLACEMENT

Tools Required

J 37228 Seal Cutter. See Special Tools .

Removal Procedure

Fig. 282: View Of Engine Oil Drain Plug
Courtesy of GENERAL MOTORS CORP.

1. Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle .

2. Place a suitable container under the engine in order to drain the oil.

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Mechanical - 6.6L - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado