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Old 06-05-2013, 12:26 PM   #122
gerfunken
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Join Date: Feb 2009
Location: Surprise, AZ
Posts: 490
Re: Scott's 1972 Chevy K-20. A place to start.

Ok, more research last night, putting my internet searching powers to the test... (and a reference if anyone else can use it.)

Ok, I've been trying to piece together the steering/hydro-boost components.

It looks like the hydro-boost in the Chevy (starting in 82 with their Diesel trucks) is running the same lines as the Dodge. They're all 16mm male to 18mm male O-ring hoses. Dodge started running the hydro-boost in 1997, it wasn't an option in '94. So, I should be able to get the parts to cover from the power steering pump to the hydro-boost (ACDELCO Part # 36352440) and from the hydro-boost to the steering gear (Dodge: ACDELCO Part # 36352340) or (Chevy: ACDELCO Part # 36357640).

In that set-up, I should be able to run the GM hydro-booster (ACDELCO Part # 14PB4147) with a new master cylinder (A-1 CARDONE Part # 101863). I also found power booster brackets to handle the hydro-boost that are custom made for the 67-72 body style.
Captinfab's Power Brake Booster Adapter Bracket
Captinfab's Hydroboost Mounting Plates


The only thing that this leaves out is the power steering box. The 1972 2wd power steering box is listed as a 3/8" input, so the metrics won't work. That being said, I saw that the part number (A-1 CARDONE Part # 275004) covers from 1968-86, and I've seen reference that they all have the same bolt patterns. It looks like they switched over from standard to metric in '81, so pushing it to the 86, and verifying that it's metric should be good. I have read that the pitman arm from the Dodge should work, but can't verify that until I get the steering box in.

With that, I'm hoping it will be a bolt in operation.
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-Scott

1972 Chevy K20
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1930 Chevy AD
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