OBS Hydro Boost Upgrade/Swap
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More Turbo
Joined: Jul 2016
Posts: 546
Likes: 1
From: Boston
OBS Hydro Boost Upgrade/Swap
Hi All,
Our master cylinder is leaking and I'm leaning towards the upgraded hydro boost replacement. I'm sure I have a ton of reading to do but I was hoping for some guidance on what needs to be replaced, removed, bypassed or upgraded to make this work. Truck is a 97 with a build date of 9/96, red head steering box and a new PS pump (OEM).
Anyone been through this that wouldn't mind a brain dump or a link to a well laid out tutorial?
Appreciate the help in advance!
Our master cylinder is leaking and I'm leaning towards the upgraded hydro boost replacement. I'm sure I have a ton of reading to do but I was hoping for some guidance on what needs to be replaced, removed, bypassed or upgraded to make this work. Truck is a 97 with a build date of 9/96, red head steering box and a new PS pump (OEM).
Anyone been through this that wouldn't mind a brain dump or a link to a well laid out tutorial?
Appreciate the help in advance!
Laughing Gas
Joined: Jan 2016
Posts: 910
Likes: 96
From: Fl.
Thread Starter
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More Turbo
Joined: Jul 2016
Posts: 546
Likes: 1
From: Boston
So this is where I'm looking but I'd like a reality check on the cost:
https://www.powerbrakeservice.net/ne...e-booster.html
Booster $475, lines $265 and MC (1 1/4" CC) $125 gets a little steep but stopping is important. We redid almost the whole truck (not this part though) so the PS pump is new along with the lines now that will be junked and we installed a red head gear box so I'm leaning towards just going new.
Are there other places you'd look for these parts? This is the first website I looked at (thanks @Jarrett Campbell ) so open to other options if you all had preferences/experiences.
Appreciate it!
https://www.powerbrakeservice.net/ne...e-booster.html
Booster $475, lines $265 and MC (1 1/4" CC) $125 gets a little steep but stopping is important. We redid almost the whole truck (not this part though) so the PS pump is new along with the lines now that will be junked and we installed a red head gear box so I'm leaning towards just going new.
Are there other places you'd look for these parts? This is the first website I looked at (thanks @Jarrett Campbell ) so open to other options if you all had preferences/experiences.
Appreciate it!
Laughing Gas
Joined: Feb 2014
Posts: 774
Likes: 25
From: Reno, Nevada
I upgraded mine several years ago after reading through several threads here and other places. As I recall there are a couple of things to watch for. Not all master cylinders come with a pushrod and according to urban legend for some reason you can’t remove and re-use the old one. Also, some master cylinders have a slightly different bolt pattern and I had to open up the bolt pattern on mine with a die grinder. It was not a big job.
About the cost, I bought the parts individually, not a kit, and I don’t recall the cost but if it was expensive I would recall.
I’m very happy with the results. At first there was a noticeable lag when the front disks engaged immediately and the rear drums took a moment to catch up. That was because the rear shoes needed adjusting. One other benefit was getting rid of the mechanical vacuum pump which now is only needed for the cab air vent controls. I replaced it with SD electric pump. One less set of bearings to worry about seizing up.
About the cost, I bought the parts individually, not a kit, and I don’t recall the cost but if it was expensive I would recall.
I’m very happy with the results. At first there was a noticeable lag when the front disks engaged immediately and the rear drums took a moment to catch up. That was because the rear shoes needed adjusting. One other benefit was getting rid of the mechanical vacuum pump which now is only needed for the cab air vent controls. I replaced it with SD electric pump. One less set of bearings to worry about seizing up.
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More Turbo
Joined: Jul 2016
Posts: 546
Likes: 1
From: Boston
I found a used hydro boost for $100 and a local shop that makes hydraulic hoses that I might go to and see if they can make them up.
Question. I was told I need a pedal and an abs delete valve. I read about people replacing the pedal, but is that needed on all trucks? Assuming it’s the rod connection point. Trying to see if I need to source that.
Also, what are your thoughts on the abs delete valve, is it needed? Can any elaborate?
Thank you
Question. I was told I need a pedal and an abs delete valve. I read about people replacing the pedal, but is that needed on all trucks? Assuming it’s the rod connection point. Trying to see if I need to source that.
Also, what are your thoughts on the abs delete valve, is it needed? Can any elaborate?
Thank you
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Laughing Gas
Joined: Feb 2014
Posts: 774
Likes: 25
From: Reno, Nevada
About the pedal, the hydro boost connection to the pedal is in a slightly different location and the push rod will run at an angle with the original pedal. It is pretty easy to modify it yourself. Maybe try searching for something like Hydroboost Pedal Mod.
About the need for ABS delete, I really don’t know any details about that one way or the other. I left mine alone and didn’t delete it.
I had a hydraulic shop make my hoses. They are a lot better than the automotive hoses.a
About the need for ABS delete, I really don’t know any details about that one way or the other. I left mine alone and didn’t delete it.
I had a hydraulic shop make my hoses. They are a lot better than the automotive hoses.a
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Joined: May 2009
Posts: 6,807
Likes: 704
From: Tobyhanma, PA
I don't think you can order the brake pedal. Maybe through a scrap yard.
Rockauto should have the hoses as well as a local parts house. Just get the hoses for a 96 Fsuperduty with the 7.3 that had the hydroboost
Rockauto should have the hoses as well as a local parts house. Just get the hoses for a 96 Fsuperduty with the 7.3 that had the hydroboost
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More Turbo
Joined: Jul 2016
Posts: 546
Likes: 1
From: Boston
I’ve found a full donor truck and from the links above, got lines on the new lines if I need them (likely will anyway).
From talking with folks, I’ve heard mixed input of whether I need to swap the pedal or not. Any way to know other than comparing them during the swap?
Also, someone mentioned an abs delete valve. Anyone know more about that, if it’s needed?
From talking with folks, I’ve heard mixed input of whether I need to swap the pedal or not. Any way to know other than comparing them during the swap?
Also, someone mentioned an abs delete valve. Anyone know more about that, if it’s needed?