New Page 1

IIn this first pic, you will see the back plate I had cut on a laser, these can be done with a torch, a little rough but can be smoothed out with a grinder and a lot of patience. The plate is 12.5 inches in diameter, 1/4 inch thick, with a center hole that is as big as the collar on the axle bearing housing (just behind the bearing cap).

The bearing cap was used to layout the holes for mounting, the U shaped cut out was derived by measuring the the width and depth of the caliper.

Also you will have to grind off some of the bumps these calipers have to fit into the U shaped cutout, take your time, you do not want to overheat the caliper, you could burn the O ring inside and cause the caliper to fail down the road.

In this picture the depth of the U is a little to deep, so be careful to measure the depth of caliper as well as the width all has to fit tightly, to avoid side play. The two extra pieces of plate welded to the back plate are for extra meat for the 7/16 fine threaded hole, where the caliper guide pins turn into.

Note: As in the pic make sure you have the mounting holes as in the pic, because you will be turning the plates 22 degrees to the rear, for caliper bleeding purposes.