GM Hydro-Boost?

[swampdigger]

I saw some pics of Ford and GM brake boosters on Ebay, and they look reeeally similar.

I know where to score a free/cheap GM Hydroboost unit, and I was wondering if anyone can confirm that they are close enough in size to work with minimal modification?

 

[ttman4]

I was wondering if anyone can confirm that they are close enough in size to work with minimal modification?

I keep threating to pull the one off my '85 Cheby CC dually that is a sitting cream-puff.
Just needs few things, engine, tranny, tires, wheels,winders,,,,,,,,just few minor things

 

[towcat]

I keep threating to pull the one off my '85 Cheby CC dually that is a sitting cream-puff.
Just needs few things, engine, tranny, tires, wheels,winders,,,,,,,,just few minor things

I'd be up for such a tryout. you do need to check the master cylinder mount spacing, the pressure port fittings and the pedal rod length.
I have an extra mount plate for a ford if you got a spare hydro

 

[Pipeliner_86]

There are also an abundance of class-B commercial trucks in the bone yards, that used hydo boost braking systems. I know the International flat bed we have on the farm has a hydo boost system. I have'nt looked it over closely, but those may be an option also.

 

[swampdigger]

Check this out:

http://www.hotrodders.com/forum/master-cylinder-bore-size-w-hydroboost-110161.html

There's some pics and measurements too... apparently, it is a close fit, and sounds like it could fit with some modifications