Assembly Of Axle; P Inion Bearing Cup Insta Lla Tio N; Pinion Depth Adjustment - Chevrolet 1991 Light Duty Truck Repair Manual

4C1-6 8 1/2-INCH RING GEAR FRONT AXLE
PINION BEARING CUP
INSTALLATION
E Install or Connect
Tools Required:
J 8608 Rear Pinion Bearing Cup Installer
J 8611-01 Front Pinion Bearing Cup Installer
J 8092 Driver Handle
1. Front pinion bearing cup using J 8611-01 and
J 8092 (figure 9).
2. Rear pinion bearing cup using J 8608 and J 8092
(figure 10).

PINION DEPTH ADJUSTMENT

Tools Required:
J 8001 Dial Indicator Set
J 21777-1 Arbor
J 21777-29 Plate
J 21777-35 Rear Pilot Washer
J 21777-42 Front Pilot Washer
J 21777-43 Stud Assembly - Bolt
J 21777-45 Side Bearing Disc
1. Clean all the gage parts.
2 Lubricate the front and rear pinion bearings with
axle lubricant.
3. Place the bearings (5) and (39) into the pinion
bearing cups.
4. Install J 21777-35, J 21777-42, J 21777-29, and
J 21777-43 to the pinion bore (figure 11).
5. Hold the stud stationary at the flats of the stud and
tighten the stud nut to 2.2 N.m (20 in. lbs.).
6. Rotate the gage plate and bearings several com­
plete revolutions to seat the bearings.
7. Tighten the stud nut until a torque of 1.6 to 2.8
N-m (15 to 25 in lbs.) is obtained to keep the gage
plate in rotation.
8. Assemble J 21777-45, J 21777-1 Arbor, and J 8001
to the differential bearing bore as shown in figure
.
12

ASSEMBLY OF AXLE

_______________________________________ F4698
Figure 10—Installing Rear Pinion Bearing Cup
Figure 11—Gage Plate Com ponents