Chevrolet Silverado / GMC Sierra. Service manual - part 2180

1. Tighten the tool-to-engine block bolts to 25 N.m (18 lb ft).

2. Tighten the J 41480 tool-to-rear housing bolts evenly to 12 N. See Special Tools .m

(106 lb in).

3. Tighten the rear housing-to-engine block bolts to 25 N.m (18 lb ft).

9. Remove the J 41480 and bolts. 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. 229: Checking Rear Cover-To-Engine Block Proper Installation Position
Courtesy of GENERAL MOTORS CORP.

10. Measure the rear housing-to-engine block oil pan surface for flatness.

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

1. Place a straight edge onto the engine block and rear housing oil pan sealing surfaces.

Avoid contact with the portion of the gasket that protrudes into the oil pan surface.

2. Insert a feeler gage between the rear housing and the straight edge. The housing must

be flush with the oil pan or no greater than 0.5 mm (0.02 in) below flush.

11. If the rear housing-to-engine block oil pan surface alignment is not within specifications,

repeat the housing alignment procedure.

12. If the correct rear housing-to-engine block alignment at the oil pan surface cannot be

obtained, replace the rear housing.

CRANKSHAFT REAR OIL SEAL HOUSING INSTALLATION (WITHOUT SEAL IN HOUSI
HOUSING)

Special Tools

J 41476 Front and Rear Cover Alignment Tool. See Special Tools .

J 41480 Front and Rear Cover Alignment. See Special Tools .

Installation

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

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