Drums to disk swap, small to big rotors ?'s

GotDart said
Carefull here. I have seen references that claim the piston diameter is different between the A-body and the B-body calipers.
This could affect brake balance if you are using the stock proportioning valve. If you plan to use an adjustable prop valve, it shouldn't matter.

The plan is A body spindles, caliper mounting bracket and calipers for the large disks from a B body.
I just looked for my (Measuring) calipers. I can't find them at this moment. I'll measure piston diameter sizes between the 75 A bodys and the '79 B bodys when I find them.

GotDart said
Also, there are two types of caliper attachment methods. One type uses pins as sliders, the other type the caliper slides in a groove machined into the mount. So the caliper type must match the caliper mounting bracket. Don't just assume you can just grab any old caliper and it will bolt right in.

Thanks, didn't assume. Good lookin out. Ya never know how knows what. (Or what they think they know.) I mentioned earlier that I have 2 complete set ups.
What I have exactly is; 1 from a '75 Duster and 1 from a '79 B body.

Also, I'll be making use of 11 inch drums on the rear. I do have a stock "A" body proportioning valve (from the Duster)
An adjustable may be in the future. I'll see how it acts.