Jeep 5093377AB U-Joint Kit

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A press or large vise will be required for this procedure. It may be advisable to take the driveshaft to a local dealer service department, service station, or machine shop where the universal joints can be replaced for you, normally at a reasonable charge. Remove the driveshaft. On U-joints with external snap-rings, use a small pair of pliers to remove the snap-rings from the spider. Supporting the driveshaft, place it in position on a workbench equipped with a vise. Place a piece of pipe or a large socket over one of the bearing caps and use the vise or press to force the bearing cap out. Use the vise or large pliers to work the bearing cap the rest of the way out. Transfer the sockets to the other side and press the opposite bearing cap out in the same manner. Pack the new universal joint bearings with grease. Position the spider in the yoke and partially install one bearing cap in the yoke. Start the spider into the bearing cap and then partially install the other cap. Align the spider and press the bearing caps into position, being careful not to damage the dust seals. Install the snap-rings. If difficulty is encountered in seating the snap-rings, strike the driveshaft yoke sharply with a hammer. This will spring the yoke ears slightly and allow the snap-rings to seat in the groove. Install the grease fitting and fill the joint with grease. Be careful not to overfill the joint, as this could blow out the grease seals. Install the driveshaft. Use the above procedure, but note that it will have to be repeated because the double-cardan joint is made up of two single-cardan joints. Also pay attention to how the spring, centering ball, and bearing are arranged. Both U-joints in the double-Cardan assembly must be replaced at the same time, even if only half of it is worn out.

If any of these conditions are present, it is necessary to replace the universal joint with new ones.

Universal joints are mechanical couplings that connect two rotating components that meet at different angles.

One can try to turn the shaft with one hand while holding the rear axle flange or the front half coupling. Any movement between the driveshaft and the front half couplings, and around the rear half couplings, indicates considerable wear. Another method is to use a pry bar inserted into the gap between the universal joint and the driveshaft or flange. Leaving the vehicle in gear and trying to pry the joint both radially and axially can reveal any looseness. A final test for wear is to attempt to lift the shaft and note any movement between the yokes of the joints.

The arrangement of the spring, centering ball, and bearing.

Use a piece of pipe or a large socket and a vise or press.