Jason
Join Date: Aug 2019
Location: Southern Commiefornia
Posts: 2
Re: Rear Disc Brake Conversion
I installed one of these kits on my 12 bolt I just built. Mine's probably different than yours because I'm running Moser axles which apparently have a thicker wheel flange than the stock axles have. I actually had to take my caliper brackets to a machine shop to have .250 inch milled off the mounting flange so the calipers would be centered on the rotors. Make sure you're putting your caliper brackets on the inside of the mounting flange not the outside like the drum brake backing plate was located.
I actually called right stuff detailing before I milled the brackets and told them the calipers would not line up and they said their kit was designed for stock axles only.
I doubt this helped you but hopefully it did!!
Jason Marshall
A.S.E. Master Auto
A.S.E. Master Truck
California certified Master Fire Mechanic