Quick question about tire size.

Discussion in 'Chevy Silverado Forum (GMC Sierra)' started by FBCaustinFBC, May 17, 2013.

  1. FBCaustinFBC

    FBCaustinFBC New Member

    so I just wanted to know what the biggest size tires I can get without a lift? I have an 07' silverado
    Heres a picture. IMG_20120421_170040.jpg
  2. SurrealOne

    SurrealOne Former Member ROTM Winner 1000 Posts

    This has been asked, before. The 'search' feature of the site is your friend.

    BTW, if I had a NNBS truck I'd likely know this off the top of my head, but mine's a NBS. Hence why I directed you to search, as it's exactly what I'd have to do to take a stab at your question. :)
  3. FBCaustinFBC

    FBCaustinFBC New Member

    I'm not sure what a NNBS is or NBS is but okay ill take a look and see if i can find anything
  4. SurrealOne

    SurrealOne Former Member ROTM Winner 1000 Posts

    NBS (New Body Style) = 99-06 & 07 classic
    NNBS (New NEW Body Style) = 07 to present

    A search on NNBS and NBS would turn up results defining them, but the terms are used a lot, so you'd have to sift.
  5. shibby2oo8

    shibby2oo8 Member 2 Years 100 Posts

    Im pretty sure 285's are the top for any year but the aspect ratio differs, for 07 nbs/nnbs up 285/70/17 with coil blocks or rancho quicklift struts. On the older t-bars crank them up to clear. For 16" wheels 285/75/16 is what you want. On your truck get either those blocks or struts and go for the 85's. For the price and how long you will end up having those tires its the better choice.
  6. FBCaustinFBC

    FBCaustinFBC New Member

    Okay so I should go with the rancho quicklift struts and the 285/70/17? sorry im new to the whole bigger tires thing
  7. shibby2oo8

    shibby2oo8 Member 2 Years 100 Posts

    Yea that sounds good, if you buy different rims make sure the backspacing wont bring the tire in or out too much.
  8. stchman

    stchman Active Member 2 Years 1000 Posts

    You can go 32" tall without any problems.
  9. shibby2oo8

    shibby2oo8 Member 2 Years 100 Posts

    265/70/17 are about 32.5" and the 285/70/17 are alittle over 33's i think.
  10. RAV52202

    RAV52202 Rockstar 100 Posts

    Tire Size Comparison

    Specification, Sidewall, Radius, Diameter, Circumference, Revs/Mile, Difference
    265/70-17 7.3in 15.8in 31.6in 99.3in 638 0.0%
    285/70-17 7.9in 16.4in 32.7in 102.8in 617 3.5%

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