Mopar 52123139AC Rear Drive Shaft

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To install the driveshaft, remove the plastic bag from the transmission or transfer case extension housing and wipe the area clean. Inspect the oil seal and center support bearing. Insert the front end of the driveshaft assembly into the transmission or transfer case extension housing. Raise the rear of the driveshaft into position, checking the alignment marks. If it's a two-piece unit, raise the center support bearing and bolt it loosely into place. Raise the rear end of the rear shaft into position and make sure the alignment marks are in alignment. Remove the tape securing the bearing caps and install the clamps and fasteners.

Whenever the driveshaft is removed, it must be reinstalled in the same relative position to preserve the balance.

Three different types of universal joints are used: single-cardan, double-cardan, and constant velocity.

The rear driveshaft employs a splined yoke at the front, which slips into the extension housing of the transmission.

If it's a one-piece unit, slide the front end of the driveshaft out of the transmission extension housing.

To remove the rear driveshaft, raise the vehicle and mark the relationship of the driveshaft to the differential axle assembly mating flange or yoke. Remove the bolts securing the driveshaft flange or universal joint clamps to the differential pinion flange or yoke. Pry the universal joint away from its mating flange or yoke and lower the rear of the driveshaft.

A road test should verify if the problem is the driveshaft or another vehicle component.

A conventional grease gun should be used to apply sufficient lubricant to the fitting.

To install the driveshaft, remove the plastic bag from the transmission or transfer case extension housing and wipe the area clean. Inspect the oil seal and center support bearing. Insert the front end of the driveshaft assembly into the transmission or transfer case extension housing. Raise the rear of the driveshaft into position, checking the alignment marks. If it's a two-piece unit, raise the center support bearing and bolt it loosely into place. Raise the rear end of the rear shaft into position and make sure the alignment marks are in alignment. Remove the tape securing the bearing caps and install the clamps and fasteners.

After applying the lubricant, you should wipe any extra grease and dirt from the area with a rag.

When applying the lubricant, you should avoid applying so much that an excessive amount comes out.

A conventional grease gun should be used to apply sufficient lubricant to the fitting.