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Quick question on ZR1 17x11 rears

This is a discussion on Quick question on ZR1 17x11 rears within the Wheels and Tires forums, part of the General Help category; I have a 98 TA WS6 and I'm considering replacing the rims with the Zr-1 17x11 in the rear. If ...

  1. #1
    Junior Member
    Join Date
    Aug 2005

    1998 Trans Am

    Quick question on ZR1 17x11 rears

    I have a 98 TA WS6 and I'm considering replacing the rims with the Zr-1 17x11 in the rear. If I understand it correctly, they are 56mm offset and need a +50mm offset?
    Also, can anyone tell me if there are fitment issues? Will I have to roll or flare the fenders? I have an APHR so I can re-center the rear if I need to. Will they fit recentered?
    I really like the CCW's (classics) and I think they are made to fit without modifications, but my wallet may still be a little tight for those. Can anyone help me out?


  2. #2
    Member 99SS'Vert's Avatar
    Join Date
    Aug 2005
    Wylie TX

    '99 Camaro SS

    You'll need to beat in a small area just in front of the bumpstop on both sides. And depending on your brand of tire, you may have to roll the fenders.
    '99 SS 'Vert M6 - Lid, TB, LS6 Int., Mac LT's w/ORY, Corsa Exh., Textralia Hybrid w/Billet Fly., Edelbrock IAS F/R, LCA's, STB, Tq. Arm, Baer GT+ Kit, 17x9.5 & 17x11's, Wolfe 6-Pt. Cage.

  3. #3
    Crazy Canuck ! Eugenio_SS's Avatar
    Join Date
    Jun 2002
    Montreal, CANADA

    2000 CamaroSS convertible

    convertibles will be just like other cars.
    I have a convertible and 17x11 on all 4 corners.
    the +56mm offset is for a 9.5" wide wheel, not the 17x11.
    get the 17x11 +50mm offset and you'll be fine.
    as for the aPHR, recommended, but make sure you center it with no springs, so you can compress the rear and center it so that no side will touch once the wheel is well inside the wheel well.
    I cut the outer part of the bumpstops to that they wouldn't interfere with tire, if I wanted to lift the car by the side.
    you might need to masssage the inner fender of the wheel well a bit... normal.
    End result, love it, but requires some work to fit the 17x11 in the rear... in the front, no work is required, basically... way more room.

    pix in signature.
    almost stock triple-black 2000 SS convertible with 17x11s on all 4 w/ 315s at the track or on the street with 18x10.5s on all 4 w/ 315s: (1), (2)

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