Chevrolet Silverado / GMC Sierra. Service manual — part 1374

Fig. 191: Installing J 45858-3, Thrust Bearing & Washer, & Forcing Screw (8.25
Inch Axles)
Courtesy of GENERAL MOTORS CORP.

2. Install the J 45858-3 (3), the thrust bearing and the washer (2), and the J 45858-6 (1) over

the outer pinion bearing cup bore.

2008 Chevrolet Silverado 1500

2008 Driveline/Axle Front Drive Axle - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado

Fig. 192: Installing Inner Pinion Bearing Cup (8.25 Inch Axle)
Courtesy of GENERAL MOTORS CORP.

3. Install the inner pinion bearing cup and the J 45858-2 (4) to the J 45858-6 (1).

Slowly turn the J 45858-6 until the inner pinion bearing cup is evenly seated over the inner

2008 Chevrolet Silverado 1500

2008 Driveline/Axle Front Drive Axle - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado

pinion bearing cup bore.

4. Turn the J 45858-6 clockwise slowly in order to draw the inner pinion bearing cup into the

inner pinion bearing cup bore.

Inspect the position of the inner pinion bearing cup as it is being drawn into the inner pinion
bearing cup bore to ensure the bearing cup is being pulled straight into the pinion bearing
cup bore. If the pinion bearing cup is not being pulled straight into the bearing cup bore,
remove the J-45858 and the inner pinion bearing cup and reposition the inner pinion
bearing cup. See Special Tools.

5. Tighten the J 45858-6 until the inner pinion bearing cup is seated in the inner pinion bearing

cup bore.

6. Remove the J-45858 . See Special Tools.

2008 Chevrolet Silverado 1500

2008 Driveline/Axle Front Drive Axle - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado

Fig. 193: Installing Outer Pinion Bearing Cup (8.25 Inch Axle)
Courtesy of GENERAL MOTORS CORP.

7. Install the outer pinion bearing cup and the J 45858-1 over the outer pinion bearing cup

bore.

Fig. 194: Installing Thrust Bearing And Washer Using J 45858-6, Thrust Bearing &
J 45858-2 (8.25 Inch Axle)
Courtesy of GENERAL MOTORS CORP.

2008 Chevrolet Silverado 1500

2008 Driveline/Axle Front Drive Axle - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado