Choosing the correct Axle U joint for a Jeep Cherokee
There seems to be a lot of confusion over the correct U joints for the Jeep Cherokee at various parts stores. Autozone lists at least three different U joints for the axle shafts. Only two of the ones they sell actually fit a Jeep.
There are two different sizes of U joints for the front axle shafts. The 174 and the 297. The smaller joint is used mostly in axles with out ABS. The smaller joint has a 1.062 inch cap and internal c clips. The larger joint has a 1.189 inch cap. These were used in the early axles with ABS and later axles regardless of ABS.
The best way to make sure you get the right joint is to measure the cap. Buying by application is like a coin toss. Since the axle shafts interchange, the axle may have been swapped. Also, the AMC vintage Jeeps are known for having odd mixes of parts.
Autozone lists a 1.125 diameter cap joint (2-1175) for many of the ABS axles. I have never found an axle shaft that these will fit. In fact, the space between the clips is wrong and you can damage the axle shaft if you try to get it in. They also do not like to give refunds after you have attempted to install the U joint.
I generally prefer to use Spicer brand U joints like Jeep came with from the factory. These seem to hold up best. However, I no longer have a local supplier that stocks the Spicer Joints. So, if I am in a rush, I use Advance Auto or Auto Zone. The Spicer U joints are available through my Crown Distributorship.