4 Runner U Joint Replacement . Changing front axle shaft U-joints, what could be simpler? U joint replacement is tricky and has to done right the first time. Toyota 4Runner Universal Joint (Front, Rear). DANA, Spider ... (Cory Harper) My U-joint has been clicking and I want to replace it. i was wondering if anyone knows where i can find a write-up on replacing one. also, where's a good place to Then put your new U-joint together, be sure to grease it, and out it back together. ToyotaNation Forum is a community dedicated to all Toyota models. When the u-joint fails, as is common with normal use, simply replace the. U joint replacement is tricky and has to done right the first time. The replacement universal joint has grooves that are machined into the bearing cups. once the cups are pressed into position retaining clips are inserted into the grooves to keep them from backing out. 2WD rear driveshaft & U-joint