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  • Backspacing: Need some info ASAP

    I'm getting some Weld draglites this week and I'm not sure what backspacing I should get for them. They come in 3.5", 4.5" and 5.5". The rims I have my drags on now have 3.5" backspacing and they stick WAY out. I don't even know what the backspacing measures. Do I need more or less?

    Thanks [img]smile.gif[/img]

    [ June 07, 2002: Message edited by: 96BeastV6 ]</p>
    -<i>Travis</i><br /><b>99 Trans Am, Pewter, A4</b> Forged, stalled, and cammed<br /><b>85 Buick Regal WH1 T-Type</b> It\'d be cool if it ran...<br /><b>94 Camaro 3.4, Teal, M5</b> The daily beater

  • #2
    I'm getting them TODAY. I need to know what to get. Any help please?

    [ June 07, 2002: Message edited by: 96BeastV6 ]</p>
    -<i>Travis</i><br /><b>99 Trans Am, Pewter, A4</b> Forged, stalled, and cammed<br /><b>85 Buick Regal WH1 T-Type</b> It\'d be cool if it ran...<br /><b>94 Camaro 3.4, Teal, M5</b> The daily beater

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    • #3
      I don't think you need any with drums. With disks, I'm not sure. Try posting in drag race forum. Keith and James both run drag racing rims.

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      • #4
        <blockquote>quote:</font><hr>Originally posted by 96BeastV6:
        I'm getting some Weld draglites this week and I'm not sure what backspacing I should get for them. They come in 3.5", 4.5" and 5.5". The rims I have my drags on now have 3.5" backspacing and they stick WAY out. I don't even know what the backspacing measures. Do I need more or less?
        <hr></blockquote>

        Backspacing measures how much the mounting surface sets back from the inner edge of the wheel. Imagine laying the wheel face down, with the inside facing up. Now lay a yardstick across the wheel. Now drop a tape measure from the middle of the yardstick, straight down to the part of the wheel that goes up against the axle/rotors. That's backspacing.

        So, if you have 3.5 now, if you are putting the wheel on, as soon as the inside edge of the wheel passes the lug bolts, you push the wheel 3.5 inches more before it touches. With 4.5, you push the wheel another inch inside before it touches.
        \'98 A4 Camaro v6-&gt;v8 conversion, and STS kit next<br />v6: 13.6 Powerdyne, 13.2 150 shot, 13.8 120 shot, 14.3 85 shot, 15.7 stock<br />v8(na): 12.18@113, 392rwhp<br />Moderator on <a href=\"http://www.mtfba.org\" target=\"_blank\">www.mtfba.org</a> and <a href=\"http://www.frrax.com\" target=\"_blank\">www.frrax.com</a> (Road Race & Autocross)<br /><a href=\"http://community.webshots.com/user/johnduncan10\" target=\"_blank\">Car pics</a>, <a href=\"http://www.trscca.com\" target=\"_blank\">TN Region SCCA</a>

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        • #5
          With just a little effort.

          http://www.tirerack.com/wheels/tech/offset.htm

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          • #6
            Thanks for the help guys. As I posted in the Drag Racing forum, I got the 5.5" backspacing ones. They should be in on Tuesday. [img]graemlins/burnout.gif[/img]

            [ June 09, 2002: Message edited by: 96BeastV6 ]</p>
            -<i>Travis</i><br /><b>99 Trans Am, Pewter, A4</b> Forged, stalled, and cammed<br /><b>85 Buick Regal WH1 T-Type</b> It\'d be cool if it ran...<br /><b>94 Camaro 3.4, Teal, M5</b> The daily beater

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