Hi Dave,
The best scheme is to find which shim you need to accomplish the proper pinion angle and then drill two holes through them...one the diameter of the pin bolt and another larger one to ensure the pin part of the bolt sits straight and not at an angle (which will compromise it). The best shims are already machined like this but the cheap ones aren't. The main thing is to not lose that hole to pin mating situation. You will need to buy new spring bolts...which is not a big deal. Lots of places to get them. Good luck!


~ Jon
1952 1/2 ton with 1959 235 | T5 with 3.07 rear end