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  1. #1

    Default How big of a tire can I put on my truck and still look good

    I have a NBS 07 model GMC crew cab. I want to get it leveled out and put a size or two larger tires on it then it came with stock. I don't want it to look out of place like the tires are to big and it needs lifting hgiher if that makes sense. Will a 305 be to large on the truck with just a leveling kit in the front? what do you guys run on yours? Pics would be nice if you have any.


  2. #2


    305/?/?...You realize that 305 is the width right? You can run a 305/50/20 with a leveling kit.

  3. #3


    It would be more like a 305/70/17's or 33/12.50/17's or the likes, I will keep the factory wheels. I ran these on my F250 with just cranking torsion bars is why I want to find out about them on this truck.

  4. #4


    You will be doing some cutting to fit a 305/70/17. Thats basically a 34x12 and these trucks don't like large tires.

  5. #5


    If you're buying new wheels, just make sure you pay close attention to the offset. I originally bought 305x50x20's with a Rough Country 3.5" lift and they rubbed because the wheel I bought sat too far under the wheel well (I "think" they had a +.12 offset but don't quote me on that).

    BTW, I have the kit for sale if you're interested. It fits on 07 & newer 1500's:

    2011 Silverado Z71 4x4 5.3L - 6" FabTech Lift, 35" Toyo's on 20" Raptor's, Magnaflow exhaust, CAI, Intune Custom Tune
    2007 Tahoe LTZ 4x4 5.3L - Black, 22" wheels, no other mods
    2008 Jetta Wolfsburg Edition 2.0 Turbo - Black currently stock
    1993 Mercedes C300 Convertable Straight 6 - Red, 17,000 original miles
    2007 MB Sports B52 - 22' Competition wakeboard boat, 6.0L 375hp

  6. #6
    Sr. Engineer marko54's Avatar
    Join Date
    Sep 2010
    N.E. wisconsin


    I have a NBS 07 Suburban 2500. I know Pickups usually sit higher however i leveled mine by adjusting the T-bars. The 2500 Suburbans are only offered with 245/16 tires. After leveling, i went with 265 duratracs. Thats about as big i can go without a lift. They rub the inner fender liner slightly at full turn if this helps.

    2007 Suburban 2500 Edge evolution CS leveled 265 goodyear Silent Armor Pro Grade Kenwood DNX6180 Nav.Radio

    OH Goody, another Pickem up truck dripping with Chrome Crap!

  7. #7


    I ran a 295/70 nitto tire with just a level kit. I trimmed plastic and they rubbed on sway bar and that was on stock 17's. You can check out my pic thread to see how it looked. 305/70 will not fit.

    ________2013 4C Rated__________

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