power steering pump for hydroboost

Discussion in 'The whoa and the sway.' started by BADDABUICK, Aug 12, 2017.


    BADDABUICK Well-Known Member

    Hi I swapped a hydroboost set-up into my car .I was wondering if there was a different psi pump that I should use with it.
  2. Briz

    Briz Platinum Level Contributor

    I want to know about this also as Im thinking about doing the same swap in the Riv.
  3. sailbrd

    sailbrd Well-Known Member

    There is a GM pump that was designed for the hydroboost. Don't know the numbers but you can search them out. The pressure of the pump does not mean much to the hydroboost but is critical that you match to your steering box. If you go to a remote reservoir system it is CRITICAL that you have a properly designed reservoir. Here is who I use: https://www.turnone-steering.com/ No one knows more about GM steering stuff than them.
  4. FJM568

    FJM568 Well-Known Member

    The 1984/5 Grand Nationals/T-types had the hydroboost brake systems on them. The power steering pump on them looked like the std pump with reservoir built in. You could probably source the pump from the 84/5 GN/T-types.
  5. steve covington

    steve covington Well-Known Member

    Minor correction to the above... ONLY the 1984 GN/ T-types had the Hydroboost. 1985 had the problematic Powermaster brake system; It had a different reservoir than the 86/87 versions.
    Also MANY diesel trucks and cars back then had the Hydroboost; I have even seen Chevy gas powered Astro vans (and their GMC cousins) with Hydroboost.
  6. FJM568

    FJM568 Well-Known Member

    Correction again...84 and early 85 GNs have hydroboost. Mid yr 85 and later got the Powermaster. I've got an early 85 GN with hydroboost.

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