Mopar 52123021AB Front Drive Shaft Assembly

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Raise the vehicle and support it securely on jack stands. Clean the grease fitting on the front driveshaft with a rag. Use a conventional grease gun to apply sufficient lubricant to the fitting, but avoid applying so much that an excessive amount comes out. Wipe any extra grease and dirt from the area with a rag.

Factory U-joints are lubricated for life and must be replaced if problems develop.

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.