Chevrolet Silverado / GMC Sierra. Manual — part 301

Fig. 232: View Of Spacer & Crankshaft Rear
Courtesy of GENERAL MOTORS CORP.

6. Remove the spacer from the rear of the crankshaft, if applicable.

Installation Procedure

IMPORTANT:

The flywheel does not use a locating pin for alignment and
will not initially seat against the crankshaft flange or spacer
(if applicable), but will be pulled onto the crankshaft by the
engine flywheel bolts. This procedure requires a three stage

2008 Hummer H2

2008 ENGINE Engine Mechanical - 6.2L - H2

Fig. 233: View Of Spacer & Crankshaft Rear
Courtesy of GENERAL MOTORS CORP.

1. Install the spacer (if applicable) onto the rear of the crankshaft.

tightening process.

Certain applications (6.0L) require a spacer and longer bolts
for proper flywheel position.

2008 Hummer H2

2008 ENGINE Engine Mechanical - 6.2L - H2

Fig. 234: View Of Engine Flywheel & Bolt
Courtesy of GENERAL MOTORS CORP.

2. Install the automatic transmission engine flywheel to the crankshaft.

3. Apply threadlock to the threads of the flywheel bolts. Refer to Sealers, Adhesives, and

Lubricants for the correct part number.

IMPORTANT: Longer flywheel bolts must be used on applications using a

flywheel spacer.

2008 Hummer H2

2008 ENGINE Engine Mechanical - 6.2L - H2