Hey Ramblin, Try, these two places, for your brake parts, Alretta Truck Parts (ask for Geoff) (508) 788-9409, or Brake & Equipment Warehouse (800)523-4632. You need to have your correct truck spec. info., so knowing, if you have a '49 GMC 1 1/4, 1 1/2, or 2 ton truck, is important. What does the ID Plate, in the driver door jamb, say.