Chevrolet Silverado / GMC Sierra. Service manual — part 1988

1. Assemble the threaded rod, nut, washer and installer. Insert the smaller end of the

installer into the front of the balancer.

2. Use a wrench and hold the hex end of the threaded rod.

3. Use a second wrench and rotate the installation tool nut clockwise until the balancer is

started onto the crankshaft.

4. Remove the tool and reverse the installation tool.

Position the larger end of the installer against the front of the balancer.

5. Use a wrench and hold the hex end of the threaded rod.

6. Use a second wrench and rotate the installation tool nut clockwise until the balancer is

installed onto the crankshaft.

7. Remove the J 41665 and the threaded rod. See Special Tools .

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Mechanical - 4.8L, 5.3L, 6.0L, 6.2L, or 7.0L - Cab & Chassis Sierra, Cab & Chassis Silverado,

Sierra & Silverado

Fig. 318:
Courtesy of GENERAL MOTORS CORP.

3. Install the USED crankshaft balancer bolt (139).

Tighten: Tighten the USED bolt to 330 N.m (240 lb ft).

4. Remove the USED crankshaft balancer bolt.

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Mechanical - 4.8L, 5.3L, 6.0L, 6.2L, or 7.0L - Cab & Chassis Sierra, Cab & Chassis Silverado,

Sierra & Silverado

Fig. 319: Identifying Hub To Crankshaft Distance
Courtesy of GENERAL MOTORS CORP.

IMPORTANT: The nose of the crankshaft should be recessed 2.4-4.48 mm

(0.094-0.176 in) into the balancer bore.

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Mechanical - 4.8L, 5.3L, 6.0L, 6.2L, or 7.0L - Cab & Chassis Sierra, Cab & Chassis Silverado,

Sierra & Silverado

5. Measure for a correctly installed balancer. If the balancer is not installed to the proper

dimension, install the J 41665 and repeat the installation procedure. See Special Tools .

Fig. 320:
Courtesy of GENERAL MOTORS CORP.

6. Install the NEW crankshaft balancer bolt (139).

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Mechanical - 4.8L, 5.3L, 6.0L, 6.2L, or 7.0L - Cab & Chassis Sierra, Cab & Chassis Silverado,

Sierra & Silverado