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Home >> Chevy Truck >> 1994 >> K 1500 Suburban 4WD V8-350 5.7L >> Repair and Diagnosis >> Transmission and Drivetrain >> Differential Assembly >> Service and Repair >> Unit Repair >> Rear Drive Axle >> Full-Floating Axle 10-1/2 Inch Ring Gear >> Assembly of the Rear Axle >> Side Bearing Preload Adjustment

Side Bearing Preload Adjustment

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Part 2 Of 2:






- The differential side bearing preload is adjusted by two adjusting nuts in the bearing bore. The bore and the bearing cap provide the mating threads for the bearing nut.
- The differential must be initially preloaded in order to determine the backlash of the gear set. After the backlash has been set, the final bearing preload is set.

- Tool Required:
- J 24429 Side Bearing Adjustment Wrench

INSTALL OR CONNECT

NOTICE: Always use the correct fastener in the proper location. When you replace a fastener, use ONLY the exact part number for that application. The manufacturer will call out those fasteners that require a replacement after removal. The manufacturer will also call out the fasteners that require thread lockers or thread sealant. UNLESS OTHERWISE SPECIFIED, do not use supplemental coatings (paints, greases, or other corrosion inhibitors on threaded fasteners or fastener joint interfaces. Generally, such coatings adversely affect the fastener torque and joint clamping force, and may damage the fastener. When you install fasteners, use the correct tightening sequence and specifications. Following these instructions can help you avoid damage to parts and systems.

1. Bearing caps to the bearings in their original locations.
2. Differential assembly to the housing.
3. Adjusting nuts.
4. Bearing caps and bolts in their original positions.
A. Assemble the caps finger tight.





B. Loosen the right side adjusting nut and tighten the left side nut using J 24429 until the ring gear contacts the drive pinion. Do not force the gears into contact. This is the zero lash point.
C. Back off the left adjusting nut approximately two slots to obtain the initial backlash adjustment.
5. Adjusting nut lock and lock bolt to the left nut.
A. Do not tighten.
B. Tighten the right adjusting nut firmly to force the case into solid contact with the left adjusting nut. Rotate the pinion several times to seat the bearings.
C. Loosen the right adjusting nut until it is free from its bearing.
D. Tighten the right adjusting nut until it just contacts the bearing. Additionally tighten the nut two slots for used bearings, or three slots if new bearings are installed.
- Tighten bearing cap bolts to 183 Nm (135 ft. lbs.).
- Measure the ring gear to pinion backlash. Refer to BACKLASH ADJUSTMENT.
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