hydro boost question

[mudslinger]

What does it take to install hydro boost on a M715? I already have power steering (V-8 swap). The truck also has drums at all 4 corners. Any help in this matter would be greatly appreciated.

[randyscycle]

You will actually need to either fabricate or buy an adapter to fit the hydroboost unit to the firewall of the M715. It bolts to the firewall, then the booster/accumulator unit bolts to it and the master cylinder bolts on the end. You'll also need to fab up a brake pedal pushrod too.

You will also need pressure hoses, and fittings, and because the M715 is a custom install, you'll probably need to have the hoses made. Any good parts store or shop that does hydraulic hoses can do that for you with your measurements.

A standard GM power steering pump will work fine.

Here's a thread about it:

Interested in hydroboosting your brakes?

[mudslinger]

Thanks for the info

[Kaiserman]

Stock GM truck (70's) hoses will work fine with the M715. Elliott will be able to tell you all about how to get one into your 715.

I have one on my 71 (swap would be the same for a 715) and it was pretty easy. The first one I installed I just cut the push rod down to the correct length and bolted the HB mounting plate right to the firewall, using the two stock holes and two I drilled.

The 2nd one I used I made a 5/16" spacer plate, and used stock FSJ Buick 350 booster brackets to space the HB off the fire wall. I can run an unaltered GM unit now.