A couple steps forward and a 1/2 step back.....
Spent a good part of a day and a 1/2 searching for booster rebuilders and calling/talking to many of them and awaiting pricing from them. The cost to rebuild a booster is about double the cost of a new or already rebuilt booster from a FLAPS. Think about it for moment, kinda crazy isn't it...
One of them shared what model the booster came off of, a 1975 Pinto and he even said to try and find an already rebuilt one. Good fellow, I owe him a lunch......
So I ordered a 75 Pinto duo diaphragm booster & master cylinder from a FLAPS and got it in 2 days, free shipping and a 20% discount....
The booster and master cylinder will bolt up to the under dash subframe that I didn't want to replace, has the proper length input rod and is basically a direct replacement, no modification needed. I decided to go with the Pinto powerbrake M/S since logic would dictate that they'd work pretty good together, and it physically looks just like the bad one on the Jimmy.... I'm going to guess whomever made this kit up back in the day liked the compact size of the Pinto power brake setup. Thats the 2 steps forward.
The 1/2 step back is I'll have to replace one of the short brake lines from the M/S to the Combo valve (proportioning valve and residual valve). The bad M/S uses a 9/16 X 18 primary port and the new M/S's primary port is a 7/16 X 24. Both have a 3/8 X 24 secondary port. I don't have a tube fitting kit so I'll have a local hydraulic shop make it up for me. I'll guess the kit M/S was replaced at one point with either a Mustang, Galaxie or whatever Ford model M/S they found. A 3/8 to 9/16 adapter made it work.
In the whole scheme of this project it would appear to be small potatoes but I've got atleast 2 full days (16 man hrs) in just this small part of getting the brakes serviceable....
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