Technical Help! Who made these disc brake caliper mounts?

These came from an unknown source. They bolt to a Ford 9" style housing end. The one with the 1/2" bolts.


I believe they are for a Wilwood type caliper. What I'm trying to determine is if there is some sort of intermediate bracket needed and what the offset of the rotor would have to be without having to buy a bunch of stuff and reverse engineering it.
In the back of my mind I keep coming up with TCI or Mr. Roadster but I'm OLD!

Anybody have a more definite I.D?

All help appreciated!!!!!!

 

If distance between caliper mounting bolts is 7.06" it is early GM or Wilwood. 5.45" is metric GM.

 

Wow, that's one heavy duty caliper mount.

Mike

 

That caliper bracket is for 5 1/2”c-c mounting hole Wilwood calipers and the calipers would be for .810 rotors. I think Wilwood sells rotors with a 2 1/2” offset from the axle flange for that application, but to be sure check with them.

 

Yeah Mike,
But it is aluminum!

Fordors,
I think it's for the larger caliper but I'll measure it.