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  1. #1
    Join Date
    Aug 2020
    Posts
    15

    Default IMCA Modified Ball Joints

    Can anyone clarify the IMCA ball joint rules for Modifieds? It states OEM/OEM rebuildable ball joints approved but no screw in type lowers.......Does this mean Adjustable ball joints are not allowed? or only the screw in type base is not allowed?

  2. #2
    Join Date
    Oct 2007
    Posts
    200

    Default

    Rebuildable/adjustable ball joints are legal a long as they have a steel cap. So QA1, Howe, Speedway, CRS, Lefthander and the such are all legal. Monoball type are not.

    No screw-in lower ball joints means you cannot weld a screw-in ball joint sleeve into the lower a-arm and then use a screw-in ball joint. The ball joint MUST be welded into the lower a-arm.

  3. #3

    Default

    To add to what TS3g said, there is no rule on the length of the stud either. You can run any length on either side to get your geometry where you want it
    Bill W. and Dr. Bob......who could have known.

  4. #4
    Join Date
    Aug 2020
    Posts
    15

    Default

    Thank you for the info guys! appreciate it

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