I thought someone would have answered by now. Has no one tried the brake kit. He shows that he sold 7 sets.
54 thru 59 3/4 tons use the same wheel bearings so the spindles should be the same. I would think that they mount to the axel in a very similar manner. Is the axel the same on 55-59 3600's? If these answers are yes I will buy the kit and let you all know.