Chrysler RAM50/D50/Arrow 1979-1993 Repair Guide

Rear Driveshaft And U-Joints



See Figures 1 and 2

  1. Scribe mating marks (or use white paint, yellow grease pencil, etc.) on the flanged yoke at the rear of the rear U-joint and on the companion flange at the front of the rear axle. This will permit the shaft to be reinstalled in the same position for balance purposes.
  3. Remove the nuts and bolts from the companion flange, and lower the rear of the driveshaft. Slide the front of the shaft out of the transmission. Cover the opening left at the rear of the transmission with a clean rag or similar means so dirt will be kept out. Have a pan or similar container at hand to catch any transmission fluid which may leak out of the flange.
  5. In the case of a driveshaft having a center bearing, the rear shaft must be removed first. Unbolt the bearing or carrier mount from the vehicle and remove it from the front driveshaft. Remove the front driveshaft.
  7. When reinstalling, apply SAE 80 hypoid gear oil (API GL-4) to the inner and outer surface of the sleeve yoke where it will enter the transmission or center bearing.

Click image to see an enlarged view

Fig. Fig. 1: Scribe with white paint the flanged yoke at the rear of the U-joint and on the flange of the rear axle

Click image to see an enlarged view

Fig. Fig. 2: Remove the nuts and bolts retaining the driveshaft to the flange. Use one wrench to hold and one to turn the nut

  1. Align the marks on the yoke and companion flange; line up the bolt holes.
  3. Install the nuts and bolts with the lockwashers on the back (nut) side of the flange. Tighten the bolts to 36-43 ft. lbs. (49-58 Nm).


This rear driveshaft universal joint replacement procedure is the same as the universal replacement procedures for the front driveshaft. Refer to the previous directions for this procedure.