Been looking online and in parts stores for days.no luck. Scoured all my old school salvage yards too. Anyone know of a booster that will bolt in its place? Early ford rangers look kinda same. Ordered a summit universal but it wouldnt fit master cyl. And didnt come with pedal clevis either.
There was a shop in Portland Oregon that rebuilds boosters. He advertises in Hemmings and went by Booster Dewey, I read he sold the business last year and it is still in existence but in Washington State. If you Google Booster Dewey information comes up. He rebuilt the booster in my 1963 Studebaker Daytona (booster Dewey) and it ran about $100 and turn around was quick, worked great. Don't know about the new guy now but an easy repair if they have all the parts. Did a lot of factory Corvette stuff and they re-plated the gold coating. Might be worth a try.
I used a local rebuilder to do my Kelsey Hayes booster years ago for my OT '68 Mustang. They are worth looking up to see if you have one around or not too far.
Another option. I've never used them nor do I know anything about them. http://www.karpspowerbrake.com/
autozone (and most other stores) have a list of vintage/obsolete parts in the computer. Sometimes you have to remind the counter guy of the list, they just hire junkies and winos off the street.
You might look at the Mustang reproduction parts stores, or Rockauto.com. https://www.classicindustries.com/shop/1971/ford/mustang/parts/brakes/power-boosters/
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