Custom performance oriented front brakes

I started to build a brake upgrade using the new larger ARGO 'pacer' spindles.

These new spindles share the same geometry as a Mustang II. So there are all sorts of aftermarket options that will fit these spindles.

As as example of the size difference, the large diameter on the stock spindle is 1.24. The new spindle diameter is 1.37.

On the new spindle, I'm planning on using the Wilwood Pro hub, and the Wilwood GT48 curved vane 12.72 x 1.25 rotor. This will require a 16-inch or larger wheel.

Then for the Caliper I'm looking to use the Wilwood Forged Superlite Internal 4 Caliper. It's huge, and been a bit of a challenge to fit.

I prototyped the caliper bracket in wood, and will have that machined in aluminum.

When it's all done I'll have the same spacing from the knuckle mounting surface to the wheel mounting surface as my previous brake package, the Aerospace brakes kit. So I'll be able to use the same wheels.

These spindles will provide other much less expensive custom options as well for those trying to upgrade brakes.

I'm not aware of the Argo/pacer spindles... will go look up!

I recall someone using Ford Mustang II rotors on an AMC spindle, but I think that is the more common smaller spindle, not the "Big Bendix" spindle. Everything AMC made, disc and drum brakes, used the same spindle dimensions (as far as the bearings and where they ride on the spindle -- mounting base thickness varied) EXCEPT the 75-78 models. Although 77-78 Hornets and Gremlins used the smaller caliper, they still used the big bearing set, making those rotors the hardest to find and most expensive when you do. The first Scarebird disc conversion used Ford Ranger rotors with Ford bearings. I don't have the list of parts handy, but I'm pretty sure they were the standard Ford ranger bearings, and the same as used on Mustang II (and earlier Mustangs). There was a small spacer ring required for the seal on the rotor that also pushed the inner bearing out slightly, so the Ford spindles must have been a little shorter than the AMC spindle... by about 3/16" IIRC.