Constant Velocity (CV) joints transmit power from the transaxle to the drive wheels under all operating conditions and a wide range of driveshaft angles. These components are protected from the elements by flexible boots, usually made from neoprene or similar material. These boots are essential to the life of the joint. Besides holding the grease inside the joint, it also keeps the elements out. If these boots are damaged, water, dirt and grit can contaminate the lubricating grease, causing premature wear.

The inner and outer CV joints, along with the driveshaft that connects the two, is known as a halfshaft assembly (Figure 1). The outboard joint, A, is a Rzeppa-style joint which only allows for a change in the driveshaft angle. The inboard joint, B, is a tripod-design which allows for both changes in driveshaft angle and length. This joint has a much larger body than the outboard joint.

Vehicle noise and vibration will probably prompt you to check the CV joints. Inboard joints that are bad usually cause vibration at different speed ranges. Outboard joints can cause clicking noises.

For a complete listing Mopar CV axle assemblies - including reman assemblies - contact your Mopar dealer.