The Stovebolt Site Forums The Shop Area Engine Shop driveline vibration?

Bob, about the shims. The way I did it was to bolt the ball housing and collar to the rear of the trans without the u-joint in place. Start with one shim and tighten down the collar. The book specifies "that it should not be too loose or too tight". If it is too tight then add a shim and so on. You have to take the ball housing in one hand and try to move it with some effort. Too many shims and the ball housing will flop down which you do not want. It is time consuming but it works. The only problem I had was how tight was too tight or how loose was too loose! Too bad they could not specify a torque-type setting. What kept me going was the thought that these trucks were often repaired in the field (literally) and the people who did it were not rocket scientists.