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  1. #1
    Join Date
    Jan 2009
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    Rhode Island
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    rim size?

    should i run 16 by 8 or 16 by 10 rims with a 285 75r16 tire and what back spacing should i go with?
    06 GMC 2500HD EC/SB 6.6 LBZ allison 6 speed, 4" MPRP turbo back, QS2 on the 70HP tune
    2000 chevy2500 RCLB 6.0
    4L80E,4.10s,aem intake,180 t stat,ported tb,descreened maf, true duals with high flow cats and 40s dumped, lt285/75r16 MTs,an a hypertech programer for now saving for a custom tune now its dead
    15.9 at 88 with mudd tires
    1973 chevy k10
    1989 chevy k1500 stepside

  2. #2
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    16x8 should be good. Stock backspacing is 5" on a 16x7, so if you get a 16x8 with 5" backspacing it will stick out 1" more than stock. The less backspacing the more the wheel will stick out like the cars you see in Mexico(no offense):

  3. #3
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    Quote Originally Posted by Duct_tape123 View Post
    16x8 should be good. Stock backspacing is 5" on a 16x7, so if you get a 16x8 with 5" backspacing it will stick out 1" more than stock. The less backspacing the more the wheel will stick out like the cars you see in Mexico(no offense):
    It would only be .5" more on each side rather than 1" on the outside of the rim.

    You're going to have a hard time finding any decent aluminum aftermarket rims with less than 4.5" of backspacing. If you do find some tell us all, because we are forced to run 16x10 rims with 4.5" of backspacing on our drag radials.

    On a 285/75/16 you could run either an 8 or a 10. I've seen both done many many times and it looks good either way.

    Personally I would stick with the 8" wide rims just because you can't find a 10" with less than 4.5" of backspacing and that will look a little silly with only 32.8" tires on the truck.

  4. #4
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    How 1/2" on each side? If you have two rims with the same backspacing but different widths, the wider rim will have more of a "dish" on the front side because there is more wheel.

  5. #5
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    Quote Originally Posted by Duct_tape123 View Post
    How 1/2" on each side? If you have two rims with the same backspacing but different widths, the wider rim will have more of a "dish" on the front side because there is more wheel.
    You're right, I was thinking about it wrong. I had to go back and draw it out. My apologies.

  6. #6
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    Its cool, just trying to keep the facts straight so there isn't any "Bob" syndrome going around. LOL(for those of you that know Bob)

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