Re: 1960 8 lug disc brakes
Last night I realized that I forgot to tell you a couple of issue I had with the spindles. I do not know if this will be an issue for you, however I try to keep you inform in case it is.
1. The top of the spindle is beefier. With the truck on jack stand and the suspension hanging I could not turn the wheel. The spindle was rubbing on the upper control arm. I bought a pneumatic file from Harbor Freight and filed the upper control arm for clearance.
2. The turn stop is different on the 81-82 GMC. When turning the wheel out to the control arm stop, the spindle stop is shaped like a chisel, I fear it would pierce the lower control stop. With it in this position I use a sharpie to scribe a line parallel with the lower control arm stop (to removing the chisel point). Use a cut off wheel to trim the spindle stop. When I did check my wheel travel I did get 44° of travel from straight ahead, Spec. is 44°, I luck out.
If you are installing a power brake booster you will need to drill a new hole in the brake pedal lever, 1" lower (center to center) than the one for manual brake. Can be done with the lever still in the truck.
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