I have a 75 K5 with a 203 tc. I pulled the front drive shaft and the ball between the two ujoints in the rear of the shaft is toast. Have the ujoints out and trying to figure out how to go about rebuilding the ball joint (?) in it. There is a yoke in between the 2 u joints has a ball that fits over a shaft that is in the driveshaft. Can you even rebuild this joint? Have never done this before, so any help is appreciated. Thanks.