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Old 01-22-2020, 03:58 PM   #1
G-NUT
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how to plumb GM hydroboost to a rack and pinion

I have a '84 burb with stock hydroboost. Years ago the diesel motor was swapped to a 350. I am changing out the front suspension to a PBFab or Porterbuilt system. Can you plumb this hydroboost to a power rack and pinion steering rack? If so, what's the correct connection?

Thanks.
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Old 01-22-2020, 04:13 PM   #2
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Re: how to plumb GM hydroboost to a rack and pinion

Yep..hydroboost will work with r&p..hook it up just like the r&p was the old steering box...
I'm not sure what rack your using but the pressure line from the hydro will go to pressure side of the rack..other side of rack goes to reservoir...and if you dont have one now would be a good time to add a inline cooler..I'm sure youll need custom lines as well...
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Old 01-22-2020, 04:23 PM   #3
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Re: how to plumb GM hydroboost to a rack and pinion

Thanks for the info and quick response. I've tried a few short-timed searches and came up short.

The rack & pinion came from CPP when I ordered my Porterbuilt front kit in 2014. Looong story on why I'm just getting to the point for installation but here I am. Not sure of the vendor but I believe it's a Mustang II r&P.

They sent me a few custom hoses. That's when they thought I had a standard power steering pump setup (which at the time I did, it was going to go on a '85 truck I had). Maybe I can get something to work. If not I'll measure and get some custom hoses.
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Old 01-22-2020, 04:44 PM   #4
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Re: how to plumb GM hydroboost to a rack and pinion

I've got some info for hydroboost and rack steering on computer at work..I'll add later
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1981 C30 LQ9 NV4500..http://67-72chevytrucks.com/vboard/s...d.php?t=753598
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Old 01-22-2020, 04:54 PM   #5
G-NUT
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Re: how to plumb GM hydroboost to a rack and pinion

Thanks a lot. I will gladly take all the info I can get before I begin installing. I'm hoping to be to that point in a week or so. Having to work on it outside (a bit cold), and when I have time. Family first.
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Old 01-22-2020, 08:39 PM   #6
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Re: how to plumb GM hydroboost to a rack and pinion

well ..my file got wiped out...I did find these...
https://www.trifive.com/forums/showthread.php?t=67217
https://www.pro-touring.com/threads/...droboost-setup

since its a cpp setup a call to them may be in order..couldn't hurt
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