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Thread: MKIV Standard Width IRS Track Width?

  1. #1
    Mustang Convert bansheekev's Avatar
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    MKIV Standard Width IRS Track Width?

    What is the recommended track width for standard width IRS on a MKIV? Preferably measured from hub surface to hub surface.

    I want to run your 17" x 10.5" Halibrands with 315's...

    Thanks

    Kevin
    MKIV, IRS/TruTrack/3.55s, Coyote, TKO600, Wilwoods
    Delivered: 1/6/2012
    First Start: 1/19/2014
    First Go-Kart: 2/1/2014
    Graduation: 1/4/2015
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  2. #2
    Mustang Convert bansheekev's Avatar
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    The only reference I can find in the manual is the 59.25" width of the <= '93 Fox solid axle.
    MKIV, IRS/TruTrack/3.55s, Coyote, TKO600, Wilwoods
    Delivered: 1/6/2012
    First Start: 1/19/2014
    First Go-Kart: 2/1/2014
    Graduation: 1/4/2015
    Graduation Thread

  3. #3
    Senior Member CHOTIS BILL's Avatar
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    I was told by FFR 59.25” hub to hub for the IRS as well.

    Bill Lomenick
    Chotis Bill

  4. #4
    Tech Support, FFR Brian Z's Avatar
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    59 1/4" From hub to hub is correct for the standard width IRS.

    Best regards,
    Brian Zakrzewski
    FFR Tech & Sales

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