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Tire Size question

Discussion in 'Chevy Silverado Forum (GMC Sierra)' started by WFD205, Jan 7, 2008.

  1. WFD205

    WFD205 New Member

    Hey there

    I recently purchased my first truck. A 2004 GMC Sierra Crew Cab, Z71. I belive the tires on it now are 265/60r/17...or somewheres close to that :)

    I was just wondering what the biggest size tire I could put on this truck without any mods, and without any problems, except for the expected speedo issue.

    Thanks for your help!
  2. Davandy

    Davandy Moderator 5+ Years ROTM Winner 1000 Posts

  3. finalday7

    finalday7 Epic Member 5+ Years ROTM Winner 1000 Posts

    You could probly get some 285/70/17's on there with minor trimming or a couple turns on torsion bars.
  4. GoFastPadre

    GoFastPadre Rockstar 100 Posts

    I have 285/75'/16's on my 00 Seirra I think the 285/70's are pretty much the same size diameter wise and I have no lift mods at present.
  5. zippy

    zippy Rockstar 100 Posts

    You're forgetting that you've got 16-wheels and the 2004 has 17-inchers.
  6. zippy

    zippy Rockstar 100 Posts

    Attached Files:

  7. sierraman

    sierraman Rockstar 100 Posts

    i have an 06 sierra with 285/70/17's with a 3 inch lift and they still have minor rubbing in reverse at full turn, nothing serious, the gmc bumper is fatter than a chevy so with gmc's it will rub if its stock, i think the chevy's can pull it off with no lift but not the gmc
  8. Pete95Sierra

    Pete95Sierra Epic Member 5+ Years ROTM Winner 1000 Posts

    goin with final day and sayin you should be able to fit a 285/70/17 no problem

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