Chevrolet Silverado / GMC Sierra. Service manual — part 2183

Fig. 236: Identifying Oil Seal
Courtesy of GENERAL MOTORS CORP.

1. Inspect the seal and identify the part number markings for proper orientation.

IMPORTANT: For proper orientation, note the installation direction of the

oil seal. The oil seal is a reverse-lip design. The part number
is applied to the outside face of the seal, as shown.

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. 237: Installing Crankshaft Rear Oil Seal Using J 41479
Courtesy of GENERAL MOTORS CORP.

2. Install the J 41479 or the J 41479-2A cone (2) and bolts onto the rear of the crankshaft.

The J 41479-2A may be required for manual transmission or 5.3L LS4 applications.

3. Tighten the bolts until snug. Do not overtighten.

4. Install the rear oil seal onto the tapered cone (2) and push the seal to the rear seal bore.

Install the oil seal with the part number markings facing away from the engine.

5. Thread the J 41479 threaded rod into the tapered cone until the tool (1) contacts the oil

seal. See Special Tools .

6. Align the oil seal onto the tool (1).

7. Rotate the handle of the tool (1) clockwise until the seal enters the rear housing and bottoms

into the seal 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

8. Remove the tool.

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 ENGINE

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

Silverado, Sierra & Silverado

OFF-VEHICLE REPAIR INFORMATION (CONT.)

ENGINE FRONT COVER INSTALLATION (RPO LY2/LH6/LMG/LY5/LC9)

Tools Required

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