Amazon has spicer u joints. I ordered them and matched My vehicle, and installed them. I use a heavy duty vise and different sized sockets to press them out and press them in. A turbo 350 and 4 speed are the same. A turbo 400 is heavy duty size. Remove the grease fitting and the end clips on the yoke and press the yoke into a larger size socket. Remove the cap and press the yoke the other way until the cap is out and remove the input shaft. Installation is the opposite, except You have to press the caps in until You can install the clips. The back is easier. Go to a shop if You are not sure How to do it. NICK L72