Rear Axle Shaft Bearing & Oil Seal: Installation
- To install, reverse removal procedure. Clean wheel bearings and inside of axle shaft housing.NOTE: Wheel bearings are sealed type. When installing, ensure sealed side of outer bearing faces wheel and that sealed side of inner bearing faces differential.
- Install new grease seal with Seal Installer (ST37710000). Install proper distance piece between inner and outer bearing. See DISTANCE PIECE APPLICATION table. Stamped letter on suspension arm should match letter on distance piece. When installed, larger side should face outward. Rear axle shaft end play is less than .012" (.30 mm).
DISTANCE PIECE APPLICATION
| Letter | In. (mm) | ||
|---|---|---|---|
| "A" | 2.198-2.200 (55.83-55.88) | ||
| "B" (1) | 2.202-2.204 (55.93-55.98) | ||
| "C" | 2.206-2.208 (56.03-56.08) | ||
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- To install, reverse removal procedure. Install new oil seal in bearing cage and lubricate cavity between seal lips. Be careful to place faced side of lock nut on washer side. Tighten lock nut to 108-145 ft. lbs. (146-197 N.m). Ensure washer lip fits in nut groove.
- After installation, be sure to bend up locking tab on new bearing lock washer. Apply wheel bearing grease to wheel bearing and recess of axle case end. Apply gear oil to axle spline and grease to seal surface before installing axle shaft. When the axle shaft is installed, use Shaft Guide (ST37840000) as a guide.
NOTE:
When installing axle shaft, adjust axial end play by applying case end shims. When servicing one axle only, axial end play is .0008-.0059" (.020-.150 mm). When servicing both axles, end play on first axle (right or left) is .012-.035" (.30-.90 mm); on second axle, end play is .0008-.0059" (.020-.150 mm).
To install, reverse removal procedure. Tighten wheel bearing lock nut to 123-145 ft. lbs. (167-197 N.m). Using a spring scale attached to a wheel stud, ensure wheel bearing preload is 4.6-8.2 lbs. (2.1-3.7 kg) with new oil seal or 4.6-6.6 lbs. (2.1-3.0 kg) with used oil seal. Bearing end play should be 0-.003" (.08 mm).
Using Adapter (J-26082) and 3-ton press, install bearing in brake drum. Install snap ring. Apply multi-purpose grease to sealing lip. Install brake drum, washer and lock nut. Install lock nut and tighten to 137-159 ft. lbs. (186-216 N.m). Install hub cap.
- Coat inner and outer wheel bearings with multipurpose grease and place inner bearing in hub. Install new grease seal, coating sealing lips with grease. Install and tighten lock nut to 18-25 ft. lbs. (24-34 N.m). Loosen lock nut and retighten to 84-108 INCH lbs. (10-12 N.m), while rotating wheel.
- Wheel bearing preload should be 3.1 lbs (1.4 kg) or less with new grease seal. With used grease seal, preload should be 2.4 lbs. (1.1 kg) or less. Install cotter pin and hub cap.