Using mustang rotors for 4.5" bc

Hetman,

I haven't used them myself, but have seen the SSBC disc brake conversion for use on (I believe) the 10" drum brake spindle. They look like a quality product. IIRC, they can be had in either SBP or BBP configuration. If I had the money, I would consider them myself.

On the other hand, I've managed to scavange more than one set of the '73+ B/F/M/J/R spindles. Depending on which caliper adapter you have, they use either the 10-7/8" (good) or 11-3/4" rotor (better). The down side is they are heavy. A plus is this spindle is 3lbs lighter per side than the '73-76 A-bdy spindle.

There is one more option which, IMO, will maximize the performance of stock parts. That is to use either of the above spindles, with the Cordoba 11-3/4" rotors, and the AR Engineering caliper adapter which will mount Wilwood 4 piston calipers to the stock rotor. In other words, the best of both worlds.

The only down side I see is that those Wilwood calipers, IIRC, are not for four season use. I believe they do not have piston boot seals. In other words, maybe not best for daily driver use. But hey, I live in FL... LOL

This is the system I'm planning for multiple projects, paired up with the rear disc brakes from Jeep Grand Cherokee.

Hope this gives you more options to consider. Does your head hurt yet? Ha ha

Mike in FL