Collapsible Spacer

COLLAPSIBLE SPACER

REMOVAL
1. With vehicle in neutral, position vehicle on hoist.
2. Remove rear brake drums.
3. Remove propeller shaft.
4. Rotate pinion gear three or four times.
5. Record torque to rotate the pinion gear with an inch pound dial-type torque wrench.
6. Hold pinion yoke with Spanner Wrench 6958 and remove pinion nut and washer.





7. Remove pinion yoke with Remover C-452 and Flange Wrench C-3281 (Fig. 34).
8. Remove pinion shaft seal with a pry tool or a slide hammer mounted screw.
9. Remove front pinion bearing using a pair of pick tools to pull the bearing straight off the pinion gear shaft.

NOTE: If bearing becomes bound on pinion shaft, lightly tap the pinion shaft with a rawhide/rubber hammer.

10. Remove collapsible spacer.

INSTALLATION
1. Install a new collapsible preload spacer on pinion shaft.
2. Install pinion front bearing.





3. Apply a light coating of gear lubricant on the lip of pinion seal and install seal with an appropriate installer (Fig. 35).





4. Install yoke with Screw 8112, Cup 8109 and Spanner Wrench 6958 (Fig. 36).
5. Install yoke washer and new nut on the pinion gear. Tighten the nut to 271 Nm (200 ft. lbs.).

CAUTION: Never loosen pinion gear nut to decrease pinion gear bearing rotating torque and never exceed specified preload torque. Failure to heed caution may result in damage.








6. Using yoke with Spanner Wrench 6958 and a torque wrench set at 475 Nm (350 ft. lbs.), (Fig. 37) slowly tighten the nut in 6.8 Nm (5 ft. lbs.)increments until the rotating torque is achieved. Measure rotating torque frequently to avoid over crushing the collapsible spacer (Fig. 38).

CAUTION: If more than 475 Nm (350 ft. lbs.) torque is required to crush the collapsible spacer, the spacer is defective and must be replaced. Failure to heed caution may result in damage.

7. Check rotating torque with an inch pound torque wrench (Fig. 38). The rotating torque of the pinion should be, the reading recorded during removal plus an additional 0.56 Nm (5 inch lbs.).
8. Install propeller shaft.
9. Install rear brake drums.