The dual MC from a modern 3/4T should bolt to the 1/2T brackets. From what I've seen in junk yards, the MC mount to the servo is pretty standard. I saw a ford 3/4 or 1T in the yard with slide-off disks, rather than bolted to the hub. It also had a bolt-on caliper carrier. I never got the chance to see if the pattern was even close to the backing plate on my 49, but wouldn't that be a dream com true (not ford, bolt-on disks for a 3/4T).
If you find a good method, let the rest of us know!


Current fleet (subject to change w/o notice)
\'49 GMC 3/4-Ton , 60 Austin Healey Frog-eye Sprite (some assembly required), 2011 Dodge Avenger, 2015 Jeep Cherokee. No, they don't all run.
My other ride is a (B737)no, (B767)no, A320.... Update... was Embraer E190, now Boeing B787.

Knowledge is a wonderful thing, but ignorance means you don't know you can't do something.