Front Axle - 181FBI
FRONT AXLE - 181FBISPACER - COLLAPSIBLE
REMOVAL
1. With vehicle in neutral, position vehicle on hoist.
2. Remove brake rotors and calipers.
3. Remove propeller shaft from axle yoke.
4. Rotate pinion gear three or four times.
5. Record rotating torque of the pinion gear with an inch pound torque wrench.
6. Hold pinion yoke with Spanner Wrench 6958 and remove pinion nut and washer.
Fig. 42 PINION YOKE REMOVER:
7. Remove pinion yoke with Remover C-452 and Flange Wrench C-3281 (Fig. 42).
8. Remove pinion seal with a suitable pry tool or a slide hammer mounted screw.
9. Remove front pinion bearing off pinion gear shaft, with a pair of pick tools. If bearing becomes bound on the shaft, lightly tap the end of the pinion gear with a rubber hammer.
10. Remove collapsible spacer.
INSTALLATION
1. Install new collapsible spacer on pinion shaft.
2. Install front pinion bearing.
Fig. 43 PINION SEAL INSTALLER:
3. Apply a light coating of gear lubricant on the lip of pinion seal and install seal with an appropriate installer (Fig. 43).
Fig. 44 PINION YOKE INSTALLER:
4. Install yoke with Installer W-162-D, Cup 8109 and Spanner Wrench 6958 (Fig. 44).
5. Install pinion washer and new nut and tighten nut to 217 Nm (160 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.
Fig. 45 YOKE SPANNER WRENCH:
Fig. 46 PINION ROTATING TORQUE:
6. With yoke Spanner Wrench 6958 and a torque wrench set at 678 Nm (500 ft. lbs.), slowly tighten nut (Fig. 45) in 6.8 Nm (5 ft. lbs.) increments until rotating torque is achieved. Measure rotating torque with inch pound torque wrench frequently to avoid over crushing the collapsible spacer (Fig. 46).
CAUTION: If more than 687 Nm (500 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. Rotating torque should be the recorded reading during removal, plus an additional 0.56 Nm (5 inch lbs.).
8. Install propeller shaft.
9. Install brake rotors and calipers.