Does anyone know how the U joints are held in, are they epoxyed or is there clips? and how hard is it to put new ones in?

 

They are held in by thin, curved clips. I've always used pliers to compress them and pull them out of the groove in the holders. Sometimes the U-joints press right out, other times they're stuck pretty tight. If you have a press, the job is pretty easy. You can also buy a C-clamp tool for removing and installing new ones. The only real problem is having to press so hard that you deform the holders. Some people use a torch and cut the crosses out first so they're only pressing on socket at a time.

 

there are c clamps if the u joints have been changed before if they are stock they are held in with a type of compresed plastic inside the housing if you look at the u joint you will see a bump on the housing, sorry this is hard to explain, but the best way to do this is to heat up the u joint housing with a toarch not red hot just enough to heat up the plastic retainers, not the u joint and watch the plastic press out like a snake.