Removal & Installation
See Figures 1 and 2
- Raise and support the vehicle.
- Mark the driveshaft and yoke for reference during assembly and disconnect the driveshaft at the yoke.
- Remove the pinion shaft nut and washer. Discard the nut.
- Remove the yoke from the pinion shaft, using a puller.
- Remove the pinion shaft oil seal with tool J-25180 on semi-floating axles, or tool J-25144 on full floating axles.
- Install the new seal with a suitable driver.
- On 1984-90 models, install the yoke, washer and a new nut. Tighten the nut to 210 ft. lbs. (285 Nm).
On 1990-98 models, set bearing preload as follows:
- The required pinion gear bearing preload torque is 1 / 2 ft. lbs. over the noted release torque as measured above.
- Rotate the pinion gear three or four times with a torque wrench attached to the yoke nut. Measure the amount of torque necessary to rotate the pinion.
- Using a holding tool, tighten the yoke nut in small increments and remeasure until the specified torque is obtained.
- Align the index marks on the driveshaft and yoke and install the driveshaft. Tighten the attaching bolts or nuts to 170 inch lbs. (19 Nm).
- Add lubricant to the rear if necessary and lower the vehicle.