Seal - Pinion

REMOVAL
1. Raise and support the vehicle.
2. Remove skid plate, if equipped.
3. Remove both C/V driveshafts.
4. Mark the propeller shaft and pinion companion flange for installation reference.
5. Remove the front propeller shaft.
6. Rotate the pinion gear three or four times and verify pinion rotates smoothly.





7. Record rotating torque at the pinion with an inch pound torque wrench, for installation reference (Fig. 20).





8. Remove the companion flange with Remover C-452 (Fig. 21).
9. Position Holder 6719 against the companion flange and install a four bolts and washers into the threaded holes and tighten the bolts.
10. Remove the pinion nut.
11. Remove the companion flange with Remover C-452 (Fig. 21).
12. Remove pinion seal with a pry tool or a slide hammer mounted screw.

INSTALLATION

NOTE: Outer perimeter of pinion seal is pre-coated with a special sealant.

1. Apply a light coating of gear lubricant on the lip of pinion seal.





2. Install seal with Installer C-3972-A and Handle C-4171 (Fig. 22).
3. Install the companion flange onto the pinion with Installer C-3718 and Holder 6719A.
4. Position holder against the companion flange and install four bolts and washers into the threaded holes. Tighten the bolt and washer so that the holder is held to the Range.





5. Install the new pinion nut onto the pinion shaft and tighten the pinion nut until there is zero bearing end-play (Fig. 23).

CAUTION: Do not exceed the minimum tightening torque when installing the companion flange at this point. Damage to the collapsible spacer or bearings may result.

6. Tighten the nut to 271 Nm (200 ft. lbs.).

CAUTION: Never loosen pinion nut to decrease pinion bearing rotating torque and never exceed specified preload torque. If preload torque or rotating torque is exceeded a new collapsible spacer must be installed.





7. Rotate and record the axle rotating torque at the pinion shaft using a torque wrench. The rotating torque should be equal to the reading recorded during removal plus an additional 0.56 Nm (5 inch lbs.) (Fig. 24).
8. If the rotating torque is low, tighten the pinion nut in 6.8 Nm (5 ft. lbs.) increments until the proper rotating torque is achieved.

CAUTION: If the maximum tightening torque is reached prior to reaching the required rotating torque, the collapsible spacer may have been damaged. Replace the collapsible spacer.

9. Install the propeller shaft with reference marks aligned.
10. Add gear lubricant to differential housing if necessary.
11. Install C/V driveshafts.
12. Install skid plate, if equipped.
13. Lower the vehicle.