Hydro booster swap?

Hetzer 88 · Dec 23, 2015

Hello everybody! Go to the rockauto.com, looking at the applicability vacuum booster from my 91 Explorer, it was put on:

Bronco II 87-90
Ranger 87-94
F-250 87-89
F-350 87-89

Then watch 89 F-350, it has the same vacuum booster and a hydraulic booster that appropriate for:

E-150/250/350 88-89
F-Super Duty 88-97
F-350 90-97

Question: Is it right that I can bolt-on swap on my 91 Explorer hydraulic booster for example from 97 F-350?

87bronco · Dec 23, 2015

I am not sure but I would want to do it I think its a great Idea if it will bolt up and you can fab or get lines made to work don't see why it wouldnt

RonD · Dec 23, 2015

Yes, it will bolt on.

Hydro-boost is used for diesels because vacuum assist would require a vacuum pump.
Racing gas engines can have very little vacuum, but better option is electric vacuum pump.
Hydro-boost requires a power steering pump which uses horsepower.

Vacuum boost(assist) uses no power on a regular gas engine, since vacuum is present pretty much all the time.

bobbywalter · Dec 23, 2015

i use the gm hydroboost on mine.

because i run a gm steering pump.

you can adapt whatever system you want.

Hetzer 88 · Dec 24, 2015

RonD said:
Yes, it will bolt on.

Hydro-boost is used for diesels because vacuum assist would require a vacuum pump.
Racing gas engines can have very little vacuum, but better option is electric vacuum pump.
Hydro-boost requires a power steering pump which uses horsepower.

Vacuum boost(assist) uses no power on a regular gas engine, since vacuum is present pretty much all the time.

And I think so, but I did not find in the Internet reporting on installing a hydro booster on the Explorer / Bronco II/ Ranger. I could not believe that nobody has done this. I find an information in full-size Bronco's forum, that when installing the hydro booster on the big Bronco and F-series is necessary to put pushrod and the brake pedal from the truck with hydraulic booster. I think it would be required in our mid-sizes too

Hetzer 88 · Dec 24, 2015

bobbywalter said:
i use the gm hydroboost on mine.

because i run a gm steering pump.

you can adapt whatever system you want.

Oh, I will swap Saginaw pump soon too))) Has the GM boosters the same bolt pattern on firewall like Ford's? And what kind of master cylinder did you put on your booster, GM or Ford?

RonD · Dec 24, 2015

Have a read here: http://www.therangerstation.com/forums/showthread.php?t=154675

Hetzer 88 · Dec 24, 2015

RonD said:
Have a read here: http://www.therangerstation.com/forums/showthread.php?t=154675

thanks, it's great!

alwaysFlOoReD · Dec 24, 2015

OBS hydro setup
04 superduty HB and MC
What do the [red] letters stand for?

4EyedTurd · Dec 24, 2015

OBS= Old Body Style= pre-97 full size truck (The good body style)
HB= Hydroboost
MC= Master cylinder

RonD · Dec 24, 2015

JG

OBS = Old Body Style, generally a '92 to '97 F-Series full size and heavy duty

HB = Hydro Boost

MC = Master Cylinder

JG = just guessing, lol, but seems to fit

EDIT, oops 4EyedTurd beat me to it

PlumCrazy · Dec 27, 2015

I used a 99 Super Duty Hydroboost unit, 94 F350 master, homemade bracket at the firewall, and a custom length push rod out of the hydroboost unit. I modified 89ish F-SuperDuty pressure lines and used a Frankenstein Saginaw pump.

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PlumCrazy · Dec 27, 2015

Big single piston front calipers and Lightning rears.

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PlumCrazy · Dec 27, 2015

Stops on a dime and can stall out my motor even with 100+:1 gearing

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IRKillroy · Dec 28, 2015

http://www.wildhorses4x4.com/product/Basic_Hydroboost_System

$650-ish.

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