Awesome. Just started my 87 squarebody project and was looking at braking options. Didn't know this existed. Will be heading to the junk yard for the Astro hydroboost. Hoping to get a chrome/billet master cylinder that will work with it. Going to install a serpentine kit on my engine. Your plumbing explanation was very helpful on what I need to do.
I finally got a hydroboost for mine. I'm cheap been looking at swap meets. Looks like an easy upgrade just mount it and connect the hoses. I was thinking of modifying the bracket on the booster but now thinking of making an adaptor to mount to the firewall the mount the booster to the adaptor for future ease of replacement. Not sure yet.
Thanks! Yes, try to get it towards the top of the tank. Mine is right about at where the fluid level sits. The only issue I've had started in 2020, the original 1972 pump is starting to get weak. I think it's going to get a modern unit with a remote reservoir this spring.
It could be, but I wanted to make sure it had no restriction. When I went on the first test drive the pedal was slow to return, ended up drilling out the return fitting as large as possible on the HB unit. Seemed to help a lot, these units must be sensitive to that.
+Bucks Bucks Should be similar, they haven't changed much over the years. I am going to switch to a modern PS pump on mine at some point, probably a LT1 style with a remote canister. The current one is pretty worn out.
Not sure on the size, it was the original one that came on the unit. Yes, it came from an Astro van however a friend rebuilt it before selling it to me.
For the power steering ones, check Russelperformance.com in the Power Steering section. They're in there. I can't remember exactly where I got the Saginaw to -6 adapter, i'll try to find my notes from then and let you know. Hope that helps.
Awesome. Just started my 87 squarebody project and was looking at braking options. Didn't know this existed. Will be heading to the junk yard for the Astro hydroboost. Hoping to get a chrome/billet master cylinder that will work with it. Going to install a serpentine kit on my engine. Your plumbing explanation was very helpful on what I need to do.
I finally got a hydroboost for mine. I'm cheap been looking at swap meets. Looks like an easy upgrade just mount it and connect the hoses. I was thinking of modifying the bracket on the booster but now thinking of making an adaptor to mount to the firewall the mount the booster to the adaptor for future ease of replacement. Not sure yet.
Thanks for the video.
Aeroquip PTFE for the win
Good stuff, thanks for the tips!
+Rudderify Glad I could help!
Thank you,
Great video! When you added the hydroboost return to your reservoir does it need to be above the fluid line so that it's a clear path?
Thanks! Yes, try to get it towards the top of the tank. Mine is right about at where the fluid level sits. The only issue I've had started in 2020, the original 1972 pump is starting to get weak. I think it's going to get a modern unit with a remote reservoir this spring.
Nice setup I am following your decision wht bout your bracket did modify it and wht length d hoses are
thanks for posting I want to do this conversion on my 1990 gmc sierra how much did the hoses cost?
I have a 70 nova disc brakes converse is dis a good set up
I saw someone somewhere (on the Internet HAHA) that the hydroboost return line was Teed into the steering box return line.
It could be, but I wanted to make sure it had no restriction. When I went on the first test drive the pedal was slow to return, ended up drilling out the return fitting as large as possible on the HB unit. Seemed to help a lot, these units must be sensitive to that.
I have a whole 02 Silverado I'm pulling engine an such for a la swap in a 78 monte, can I use the hydroboost out of that truck? Are they the same?
Should be pretty much identical, I'd use RockAuto and pull up a booster for your truck and one for a 95 Astro Van and compare them.
I have a 09 motor/trans and hydro booster will this work in 81 Malibu its a Express 3500 . will it be the same set up
+Bucks Bucks Should be similar, they haven't changed much over the years. I am going to switch to a modern PS pump on mine at some point, probably a LT1 style with a remote canister. The current one is pretty worn out.
+David Starr (SuperDavesGarage) im using ly6 and its still connected so im going to try it ot thanks i appreciate it.
What is the size of the fitting on the return line from the hydroboost? Is that a Astro Van hydroboost?
Not sure on the size, it was the original one that came on the unit. Yes, it came from an Astro van however a friend rebuilt it before selling it to me.
Nice job what brake line kit u use
No kit, just regular stuff from Orilieys. Thanks!
where to find those adapters?
For the power steering ones, check Russelperformance.com in the Power Steering section. They're in there. I can't remember exactly where I got the Saginaw to -6 adapter, i'll try to find my notes from then and let you know. Hope that helps.