8.5, 9.5 Inch Axle

Removal Procedure





1. Raise and support the vehicle on a hoist. Refer to Vehicle Lifting.
2. Remove the tire and wheel assembly. Refer to Tire and Wheel Removal and Installation In Steering and Suspension and Suspension.
3. Remove the brake caliper. Refer to Brake Caliper Replacement - Rear in Brakes and Traction Control.
4. Remove the rear cover and the gasket. Refer to Rear Axle Housing Cover and Gasket Replacement.
5. Remove the pinion shaft locking screw.





6. On axles without a locking differential, remove the pinion shaft.





7. On axles with a locking differential, remove the shaft part way. Rotate the case until the pinion shaft touches the housing.





8. On axles with a locking differential, use a screwdriver, or a similar tool, in order to enter the differential case and rotate the lock (1) until the lock aligns with the thrust block (2).





9. Push the flange of the axle shaft (1) toward the differential.
10. Remove the lock (4) from the button end of the axle shaft (1).

Important: When removing the axle shaft, do not rotate the shaft. Rotating the shaft will misalign the gears. Misaligning the gears will make the assembly difficult.

11. Remove the axle shaft (1) from the housing (5).
12. Inspect all the parts for damage. Replace the parts as necessary.


Installation Procedure

Important: Carefully insert the axle shaft in order to not damage the seal.





1. Install the axle shaft (1) into the housing (5).
2. Slide the axle shaft (1) into place allowing the splines to engage the differential side gear.
3. On axles without a locking differential, place the lock (4) on the button end of the axle shaft (1).
4. On axles with a locking differential, keep the pinion shaft partially withdrawn.





5. On axles with a locking differential, place the lock (1) on the axle shaft (3) so that the ends are flush with the thrust block (2).
6. Pull the shaft flange outward in order to seat the lock in the differential gear.

Important: Anytime you remove a differential pinion shaft locking screws, coat the screw threads with LOCTITE 242 before reinstalling the screws. Refer to Fluid and Lubricant Recommendations. The screw has an adhesive coating in order to prevent the screw from loosening in the case. Removing the screw removes the adhesive on the screw.





7. Align the hole in the pinion shaft with the screw hole in the differential case.

Notice: Refer to Fastener Notice in Service Precautions.

8. Install the pinion flange locking screw.
Tighten the pinion flange locking screw to 34 Nm (25 ft. lbs.).
9. Install the rear cover and the gasket. Refer to Rear Axle Housing Cover and Gasket Replacement.
10. Install the brake caliper. Refer to Brake Caliper Replacement - Rear in Brakes and Traction Control.
11. Install the tire and wheel assembly. Refer to Tire and Wheel Removal and Installation In Steering and Suspension and Suspension.
12. Fill the rear axle to the following levels. Refer to Fluid and Lubricant Recommendations.
^ 8.6 inch ring gear rear axles 15-40 mm (0.6 - 1.6 inch) below the fill plug.
^ 9.5 and 10.5 inch ring gear rear axles 15-40 mm (0.4 inch) below the fill plug.
13. Remove the supports and lower the vehicle.