Universal Joints; Lubrication; Precautions; Single Cardan Universal Joint - Jeep Wrangler 1997 Manual

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Table of Contents

DIFFERENTIAL AND DRIVELINE

GENERAL INFORMATION (Continued)

UNIVERSAL JOINTS

Two different types of U-joints are used with the

propeller shafts :

" Single cardan U -joint (Fig . 2)

" Double cardan (CV) U-joint (Fig . 3)

The factory installed U-joints are lubricated for

the life of the vehicle and do not need re-lubrication .

All U-joints should be inspected for leakage and

damage each time the vehicle is serviced. If seal

leakage or damage exists, the U-joint should be

Fig. 1 Propeller Shafts

Fig. 2 Single Cardan Universal Joint

Use exact replacement hardware for attaching the

propeller shafts . Exact replacement will ensure safe

operation. The specified torque must always be

applied when tightening the fasteners.

Put reference marks on the propshaft yoke and

axle or transmission yoke before service (Fig. 4). This

will assure correct phasing and eliminate possible

CAUTION : Do not allow the propeller

Attach it to the vehicle underside with wire to pre-

damage to the universal joints.

or hang from either universal joint

Troubleshooting