Tools Required
J 39446 ABS Exciter
Ring Protector
Important: Use the J 39446
in
order to prevent damage to the rear wheel speed sensor reluctor wheel when
removing components within the rear axle housing on vehicles with standard
rear axles.
Important: The driveline components in this vehicle are factory system balanced.
System balancing provides a smoother running driveline operation.
Observe and reference mark the positions of all of the driveline components
relative to the propeller shaft and rear axle prior to assembly.
The following driveline components are relative to the propeller shaft
and rear axle:
| • | The differential drive pinion gear yoke |
Be sure to reassemble all of the components in the exact relationship
to each other that existed before the components were disassembled.
Ensure that the published specifications and torque values and any measurements
made prior to disassembly are followed during assembly. These specifications
must be followed in order to maintain the factory balance of the components.
When a new differential ring gear and a new drive pinion gear are installed,
replace the original drive pinion gear yoke with a service drive pinion gear
yoke. Refer to
Pinion Oil Seal Replacement
.
Advise the owner to avoid the following actions for the first 80 km
(50 miles) of driving after the replacement of the drive pinion gear yoke:
| • | Driving at speeds faster than 80 km/h (50 mph) |
Use the following steps in order to clean and inspect the rear axle
components whenever the rear axle is taken apart for service:
| • | For vehicles equipped with standard non-traction control rear
axles, select the correct ABS exciter ring from the J 39446
. |
| | Attach the correct ABS exciter ring protector to the speed sensor reluctor
wheel. |
| • | Clean all of the differential bearings thoroughly in clean solvent. |
| • | Visually inspect the bearings. |
| | Minute scratches and pits that appear on the rollers and the races at
low mileage are caused the initial preload. |
| | Do not replace bearings that have minute scratches and pits on the rollers
and the races at low mileage. |
| • | Inspect the bearings by feel: |
| 1. | Ensure that the bearings are oiled. |
| 2. | Rotate the bearings. Apply as much hand pressure as possible. |
The bearings should feel smooth.
| • | Inspect the sealing surface of the differential drive pinion gear
yoke for the following conditions: |
| - | These conditions may cause damage to the differential drive pinion gear
seal. Damage to the seal may result in an oil leak. |
| • | Inspect the housing bore for burrs. |
| | Burrs may cause leaks around the OD (outside diameter) of the drive
pinion gear seal. |
| | Remove any burrs that are found. |
| • | Inspect the following components for excessive wear and scoring: |
| • | The differential ring gear |
| • | The drive pinion gear teeth |
| • | Inspect the following components for unusual wear: |
| - | The differential drive pinion gear shaft |
| - | The differential drive pinion gear |
| - | The differential pinion gear thrust washers |
| • | Pry against the shoulder at the puller recess in the differential
case in order to inspect the press fit of the differential bearing inner race
on the differential case hub. |
| | Ensure that the differential bearings are press fit onto the hub. |
| • | Inspect the rear axle for the following conditions: |
| - | Loose (lapped-in) bearings |
| - | The above conditions indicate that foreign material is present. If any
of the above conditions are found, clean the rear axle housing. |
| • | On vehicles with standard non-traction control rear axles, inspect
the speed sensor reluctor wheel for the following conditions: |
