1987 Chevy El Camino u joints

If they are the original u-joints, you will need a torch to remove them. After you remove the drive shaft, you will see where there was a product injected into the end where the joint is. Heat it with a torch. Eventually, the compound will squirt out. Next, place a large socket (larger than the u-joint cap) under one side of the joint. Align it so the end cap can push into it. Next, take a socket that is slightly smaller than the endcap on the opposite side and hammar the cap through.

Let me know if this helps. It is harder to explaine than it is to do.

Joe