DRIVE CARE AND MAINTENANCE
2. Install radial bearing lockring and squeeze ring
into pinion shaft groove with pliers.
3. If new cups are to be installed, press firmly
against pinion bearing cage shoulders.
4. Lubricate bearings and cups with light machine
5. Insert pinion and bearing assembly in pinion
cage and position spacer or spacer combination
over pinion shaft.
6. Press front bearing firmly against spacer.
7. Rotate cage several revolutions to assure
normal bearing contact.
8. While in press at 25,000 pounds pressure, check bearing preload torque. Wrap soft wire around cage and
pull on horizontal line with pound scale. If a press is not available, the yoke may be installed and the pinion nut
tightened to specified torque for checking (refer to Fig. 2).
If rotating torque is not within 5 to 15 lb in, use thinner spacer to increase or
thicker spacer to decrease preload.
Example: Assuming pinion cage diameter to be 6 inches the radius would be 3
inches and with 5 pounds pull would equal 15 lb in preload torque.
9. Press yoke against forward bearing and install washer and pinion shaft nut.
10. Place pinion and cage assembly over carrier studs, hold yoke and tighten pinion shaft nut to specified
torque. The yoke must be held with a suitable tool or fixture to tighten nut.
11. Recheck pinion bearing preload torque.
If rotating torque is not within 5 to 15 lb in, repeat the foregoing procedure.
12. Hold yoke and remove pinion shaft nut and yoke.
13. Lubricate pinion shaft oil seal and cover outer edge of seal body with a non-hardening sealing compound.
Press seal against cover shoulder with seal driver (refer to Fig. 3).
14. Install new gasket and bearing cover.
15. Press yoke against forward bearing and install washer and pinion shaft nut (refer to Fig. 4).
16. Tighten to specified torque (refer to Torque Specifications) and install cotter key. Do not back off nut to
align cotter key holes (refer to Fig. 5).