hydro boost on an a body

Hi there. I'll be done with my hydroboost setup up in a week or two. I'll post a full how-to. I'm in the stages of pulling my exhaust because I want to replace the manifolds, so I'll do the hydroboost swap at the same time.

What I've done so far is to pull a hydroboost out of an '87 Chevy Astro from a junkyard, which cost me $29. I think its bad idea to use used junkyard parts on something as safety-critical as brakes, so I dropped it by the rebuilder and had them do the full rehash of the unit. That cost $200. It's worth it. Note that if you're out looking for a junkyard donor, be sure to get a booster with the nitrogen canister. When you have it rebuilt, they'll check it for leaks and re-pressurize if need be.

Next, I found an individual online who sells pretty aluminum adapter plates for the firewall. You're going to swtich over to a later Chrysler/Ford/GM/Raybestos two-bolt master cylinder, and this plate will bolt up to the four threaded posts on the firewall and give you two new posts for the master cylinder. I already have this conversion thanks to the vacuum booster I'm running now.

The only two parts I have left to do are (a) make (or have someone else make) the proper high and low pressure power steering lines with the right fittings. (b) Determine the correct length for the pushrod for the master cylinder. I want to use adjustable thread stock with fastening bolts so I can really adjust it perfectly.

I'll keep you posted.