Dentside Hydroboost
Lead Driver
Joined: Oct 2018
Posts: 7,845
Likes: 2,353
They weren't 4 wheel disc and they weren't anti-lock but with just a hydroboost they still aren't. the pedal pressure required on stock brakes is minimal and was not really a struggle for me when these rigs were new, and now that I'm in my 50's it still isn't. maybe I'm just super strong or something and I might believe that if my 5'4 120 lb wife didn't pull a gooseneck stock trailer all the time with an F250 back in the day .
I'm not bashing anyone who does it I just don't get it. at all.
I'm not bashing anyone who does it I just don't get it. at all.
Tuned
Joined: Nov 2015
Posts: 365
Likes: 13
I've done a few Super Duty vacuum and hydro conversions. I used CAD software to design a Super Duty brake booster conversion (and a vacuum SD conversion too for that matter). The parts I have are only compatible with 99-04 SD brakes though. May be worth considering! feel free to message me or check out the site. The braking improvement is unreal.
https://www.battlebornbrakes.com/ford-trucks-73-79
https://www.battlebornbrakes.com/ford-trucks-73-79
I talk about it in this thread I made a while ago.
https://www.ford-trucks.com/forums/1...t-install.html
Thanks.
Jess
More Turbo
Joined: Sep 2017
Posts: 640
Likes: 10
Hey bud, could you tell me what fittings you have on your hydroboost? I'm running one out of a 2001 f-350 and I want to run braided lines but can't figure out what the fitting on the hydro boost is for the pressure lines. Searching around says it is a m16 x 1.5 but the Russel m16 x 1.5 I bought doesn't fit.
I talk about it in this thread I made a while ago.
https://www.ford-trucks.com/forums/1...t-install.html
Thanks.
Jess
I talk about it in this thread I made a while ago.
https://www.ford-trucks.com/forums/1...t-install.html
Thanks.
Jess
6an male flare to M16-1.5 o ring (ICT Billet F06ANPSM1615 for example)
· 6an male flare to M18-1.5 o ring (ICT Billet F06ANPSM1815 for example)
Fleet Mechanic
Joined: Jan 2012
Posts: 1,668
Likes: 13
From: Saskatchewan
I've done a few Super Duty vacuum and hydro conversions. I used CAD software to design a Super Duty brake booster conversion (and a vacuum SD conversion too for that matter). The parts I have are only compatible with 99-04 SD brakes though. May be worth considering! feel free to message me or check out the site. The braking improvement is unreal.
https://www.battlebornbrakes.com/ford-trucks-73-79
https://www.battlebornbrakes.com/ford-trucks-73-79
Thread Starter
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Cross-Country
Joined: Sep 2019
Posts: 58
Likes: 0
@ jocobj-- I know, I know... I am running a '92 OBS frame, with its brakes, they are stock, disc / drum. I just want feedback on hydroboost experiences dealing with my animal, not a 99+. I understand how it works, just would like to know about real world experiences.
More Turbo
Joined: Sep 2017
Posts: 640
Likes: 10
Austin,
As far as a 92 hydroboost powering a 92 chassis with 92 brakes, that's a question for people who have 1992 trucks
. And they work just fine, nothing wrong with them. In general though, I believe those master cylinders are either 1 1/6" bore or 1 1/8" bore. In my opinion, I would not go through all the trouble to convert to hydro to end up with a master that is less than 1 5/16" or 1 3/8". I know the larger bore is overkill, but it makes you pedal feel worlds better. My previous master cylinder was a 1 1/8" bore and I was not happy with it.
Tuned
Joined: Nov 2015
Posts: 365
Likes: 13
You need both an M16 and an M18 fitting, there are two pressure lines on the booster. The return line is a 3/8 hose barb- that Tees into the return from the steering box. Here are the part numbers I use for 99-04 SD hydroboost conversions:
6an male flare to M16-1.5 o ring (ICT Billet F06ANPSM1615 for example)
· 6an male flare to M18-1.5 o ring (ICT Billet F06ANPSM1815 for example)
6an male flare to M16-1.5 o ring (ICT Billet F06ANPSM1615 for example)
· 6an male flare to M18-1.5 o ring (ICT Billet F06ANPSM1815 for example)
Jess
More Turbo
Joined: Sep 2017
Posts: 640
Likes: 10
I have Russell #648060 -6 x m16 x 1.5, and Aeromotive FBM2608 also -6 x m16 x 1.5 neither will fit. Thought I bought the 18mm adapter too but I can't seem to find it. Not sure why these don't fit. I pulled the hydroboost from the truck myself, so I'm kinda at a loss here.
Jess
Jess
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Tuned
Joined: Nov 2015
Posts: 365
Likes: 13
The original lines screw right in, I grabbed them when I pulled the hydroboost. I'm wondering if it might have been a leftover from previous years that got put in the truck I pulled it from. From what I've read the earlier hydroboost units had 11/16" and 5/8" fittings which are close to 18mm and 16mm, just a little smaller. I'll have to look into that.
Jess
Jess
Laughing Gas
Joined: Jan 2016
Posts: 828
Likes: 66
From: Hartford, WI
They weren't 4 wheel disc and they weren't anti-lock but with just a hydroboost they still aren't. the pedal pressure required on stock brakes is minimal and was not really a struggle for me when these rigs were new, and now that I'm in my 50's it still isn't. maybe I'm just super strong or something and I might believe that if my 5'4 120 lb wife didn't pull a gooseneck stock trailer all the time with an F250 back in the day .
I'm not bashing anyone who does it I just don't get it. at all.
I'm not bashing anyone who does it I just don't get it. at all.
Wild Horses 4x4 HydroBoost Kit install 77 F1504x4
The truck before the conversion stopped ok but the pedal effort seemed way harder than what it should’ve been. I always felt like I had to cram my leg into the brake pedal. I’ll be pulling a ATV trailer a lot more with the truck this year so that was my main reason wanting to upgrade the power brake system.Did the conversion about 2 weeks ago. I couldn’t be happier with how the brake pedal feels and how much less effort it takes to push and seems to help the truck brake better to boot.
Thread Starter
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Cross-Country
Joined: Sep 2019
Posts: 58
Likes: 0
Good morning, its been a while but finally getting back to this ordeal, going back to the AN adapter fittings - Do you know if they are the same on the OBS hydroboost assembly? I found a good deal on a OBS superduty setup booster, master cyl etc. I was planning on running that in combination with my redhead steering box and saginaw pump. I'm not sure yet if the pump output pressure needs to be adjusted to handle the demands of the ford accessories.
Cargo Master
Joined: Nov 2007
Posts: 2,238
Likes: 475
OBS should be standard fitting, 99+ SD will be metric.
Someone a couple posts up talks about the sizes.
Someone a couple posts up talks about the sizes.
The original lines screw right in, I grabbed them when I pulled the hydroboost. I'm wondering if it might have been a leftover from previous years that got put in the truck I pulled it from. From what I've read the earlier hydroboost units had 11/16" and 5/8" fittings which are close to 18mm and 16mm, just a little smaller. I'll have to look into that.
Jess
Jess
Cargo Master
Joined: Jun 2014
Posts: 2,212
Likes: 322
From: Central Florida
Yes, I used the Russell catalog to identify the adapters needed to go from a Saginaw pump to a Hydratech setup with CPP master cylinder with built in front/rear adjustment then to a cooler and back to the reservoir. It has dual returns, one for the brakes and one for the power steering.
5th Wheeling
Joined: Aug 2001
Posts: 29
Likes: 3
From: Fairport, NY
I purchased the kit as well. Still deciding on the install. Did you use the 'T' fitting for the low pressure return lines or did you install a remote power steering reservoir like the diagram that was supplied with the kit from Hydratech showed? The instructions are for the use of the 'T' fitting.....