I am in the process of converting my '75 to power front disc brakes. I bought my kit from Tom's bronco parts. I'm sure it is the same as the Wild Horses kit.
I had several (discoveries) things I had to change to get this to work.
I have mocked up this assembly way too many times to get everything to fit.
But patience prevailed. These are a couple of problems I discovered.
1) the knuckle had to be ground along with the caliper. This I expected, but "why" was never clearly explained. The reason is to allow the caliper to move in and out as the pads wear. This is important. These calipers are floating on the bolts
2) The backing plate does not allow the pads to fit properly. In other words, I had to machine room (on the backing plate)so the pads could move around freely without hitting the backing plate. As it was sent to me, the pads installed hit the backing plate and cocked them. After machining in clearance on the backing plates, the pads fit properly. This fixed this problem.
3) The snap ring on the internal shaft of the axle is a throw away. This too was never explained. The outer snap ring is used and the internal one is discarded. Why? There is no room with the new spindles to allow the old axles to fit the Warn hub assebly..
I was pulling my hair out thinking something was terribly wrong.
I finally found out that this inner snap ring is not used from an internet article I found.
Thank god for the internet and other bronco owners who have paved the trail with this conversion.
Hope this helps.
Eugene Flor
[email protected] If you have any questions