I got a booster from a late 60's or early 70's passenger car, a chevy. I made sure my original master cylinder would bolt on to it. I made a bracket from 1" by 3" rectangular steel, a 3" inch piece. I drilled the mounting holes I would need. The center hole for the brake rod had to be an inch and a half because of the rubber boot on the back of the booster. I asked a machine shop to do this. ( cost $100.00 in 1996) Live and learn. I rigged my brake rod with some threaded stock. It had to be made longer as I recall. It has worked great for 13 years and over 100,000 miles.
If I had to do it over again I would get the booster, bracket, and master cylinder of a 70's pickup.
