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Tire Sizes for New Truck

Discussion in 'Wheels & Tires' started by MightyTundraGA, Mar 28, 2021.

  1. Mar 28, 2021 at 10:51 AM
    #1
    MightyTundraGA

    MightyTundraGA [OP] New Member

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    Hey there! New to the forum. My 2021 Plat MGM CM comes in in about a month. I'm looking at replacing the OEM tires and wheels and I'm looking at doing a 3/1 leveling kit. My question is this....how big a tire can I go without having to do any cutting? I'm looking at the Cooper ATS XLT in LT285/75R18. It's 11.5 inch wide and 34.84 inches in diameter.

    Let me know what you guys think! Thanks in advance!
     
  2. Mar 28, 2021 at 10:53 AM
    #2
    panicman

    panicman Everyone remain calm.

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    There’s a great fitment tool here, I’ll go rummage it up.

    Welcome from Oregon!
     
    Ely010606 likes this.
  3. Mar 28, 2021 at 10:54 AM
    #3
    Black Wolf

    Black Wolf Chillin' in Alamosa

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  4. Mar 28, 2021 at 10:58 AM
    #4
    panicman

    panicman Everyone remain calm.

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    That’s the one- Black Wolf just beat me.
     
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  5. Mar 28, 2021 at 11:01 AM
    #5
    MightyTundraGA

    MightyTundraGA [OP] New Member

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    Sweet! Thanks fellas! So, does that mean I don't need any sort of offset? I'm looking at pairing them with the Fuel Vector or Heater wheels in 18x9. I've seen mention of +1 or+20 offset. But, if I fall within the range on this list, then I should just be able to replace 1:1, correct?
     
  6. Mar 28, 2021 at 11:48 AM
    #6
    Tundra1078

    Tundra1078 New Member

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    285 75 18 fit nicely. No cutting. Just minor rubbing at times on inner plastic.
     
  7. Mar 28, 2021 at 11:49 AM
    #7
    Jim LE 1301

    Jim LE 1301 Camaro Lover, SSEM # 11,TTC#179

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  8. Mar 28, 2021 at 1:55 PM
    #8
    MightyTundraGA

    MightyTundraGA [OP] New Member

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    Thanks all! It would have taken me a while to find these existing threads, so thanks for saving me butt loads of time!
     
    panicman likes this.

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