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Cooper Discoverer STT. 275/65/18 vs 325/65/18

Discussion in 'Wheels & Tires' started by SubFrozen, Jan 17, 2012.

  1. Jan 17, 2012 at 10:12 PM
    #1
    SubFrozen

    SubFrozen [OP] r00t

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    I'm running an OME heavy duty 3" lift on the truck with an ARB front bumper. Currently I'm running 275/65/18 without any problems. I'm getting a free set of tires of my choosing and I want to know if I can run 325/65/18's.

    E.G. go from 32" to 34.6"

    I'm attached photos of my current tires for reference.

    [​IMG]
    from the online tire size calculator

    [​IMG][​IMG][​IMG][​IMG][​IMG]
     
  2. Jan 18, 2012 at 5:55 AM
    #2
    KPT

    KPT sees what you did there.

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    I doubt it with an ARB. Seems to be the consensus that the ARB is the least amennable to large tires of all the aftermarket front bumpers. There are a few guys running 35's on a 3" lift, but all have a non-arb plate bumper, and have cut their metal fenders to make them fit.
     
  3. Jan 18, 2012 at 10:23 AM
    #3
    SubFrozen

    SubFrozen [OP] r00t

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    Think I can jump up a little bit to 33"?

    [​IMG]
    from the online tire size calculator
     
  4. Jan 18, 2012 at 10:29 AM
    #4
    KPT

    KPT sees what you did there.

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    Yeah I think you can make a 33 work. Check out some of the other guys running ARB's and see what setup they have.
     
  5. Jan 18, 2012 at 10:36 AM
    #5
    SubFrozen

    SubFrozen [OP] r00t

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    Yep, I'll keep it at 33, any bigger and I'll have to do some tweaking to everything, even with more offset on the rims.

    I'm going with:
    http://simpletire.com/cooper-lt275-70r18-76134-tires
     
  6. Jan 18, 2012 at 12:13 PM
    #6
    BrettBretterson

    BrettBretterson Wild Ginger

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    I would just like to point out that a 285/70/18 is a 34", not a 33". I would stick with your decision to run a 275/70/18, as that is closer to a 33" even though that itself is still a little taller than a traditional 33".
     
  7. Jan 18, 2012 at 12:18 PM
    #7
    SubFrozen

    SubFrozen [OP] r00t

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    I know 35" is too big. Would 34" be the same, or is my max at 33"?
     
  8. Jan 18, 2012 at 12:22 PM
    #8
    SubFrozen

    SubFrozen [OP] r00t

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    I went with 275/70/18
     
  9. Jan 18, 2012 at 12:25 PM
    #9
    BrettBretterson

    BrettBretterson Wild Ginger

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    Well like KPT basically said, it's a guessing game at this point. The only way you'll really know is to mount one and see how bad it rubs. I'm pretty sure you'll have a hard time making a 34" work, though you can make anything work with enough will.

    Personally, I would go with the 275/70/18 Cooper you picked out for a 3" lift. My buddy ran that exact tire in that size on his 2nd gen with 2" of lift, and we had to trim a fair amount of inner fender/bumper just to stop the rubbing on the street.
     
  10. Jan 18, 2012 at 12:27 PM
    #10
    BrettBretterson

    BrettBretterson Wild Ginger

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    Good choice. What tire are you running currently in 275/65/18?
     
  11. Jan 18, 2012 at 1:20 PM
    #11
    SubFrozen

    SubFrozen [OP] r00t

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    Nitto Terra Grapplers A/T
     
  12. Jan 18, 2012 at 2:33 PM
    #12
    Fightnfire

    Fightnfire Recklessly tired

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  13. Jan 18, 2012 at 2:55 PM
    #13
    SubFrozen

    SubFrozen [OP] r00t

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    Yea, love those, too. I am getting this set free of charge and fell in love with the STT's a few years ago.
     
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