BIG A#$ Brakes dilemma..

[MadRatt]

Thanx for the reply Keith.
I found a master after some digging that seemed to match. It was an i.d. of 1.25. I never had to measure for one of these before. Thought I needed to measure the O.D. that went into the booster.

It is a vacuum boosted set up. I had a hell of a time finding one once I identified it. Rockauto was out of stock. Autozone showed unavailable anywhere as well as Advanced. O'reilley crossed to one that was backwards from what I needed. Ended up getting one from Amazon in the Cardone brand. Fits but seems now I have a caliper problem. Pedal still is just an air ball even thou I can see fluid moving in the master. I think a caliper is stuck. That will be the next adventure. Probably do new calipers and new wheel cylinders to make sure everything is good. Just gotta wait on some help to move the truck safely to where I can work on it with some air tools that reach. No brakes is hard to move around by yourself. lol