What are the biggest tires that i can put on my unchanged from the
factory 2001 GMC sierra Z71 offroad truck without the tires rubbing
against the wheel wells?

Hello -

Thank you for your question.  Please ask for any clarification you may
require prior to rating this answer.  Thank you.

I've confirmed with three separate sources, the largest tires that
will fit this vehicle are the 285/75R16.  However, this will require
cranking up the torsion bars and *may* require trimming the valence
(the latter was mentioned by one of the sources).  The 265/75R16
should fit without alteration.

According to Brannon's tire, the 265/75R16 diameter is about 32" and
the 285/75R16 diameter is about 33".


Sources
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  Brannon Tire
  4905 Claremont Ave
  Stockton, CA  95207
  (209) 474-8473 

  Moran's Tires & Wheels  
  11571 Berryessa Rd  
  San Jose,  CA  95133  
  408-452-8838  

  Coast Performance & Offroad
  1707 South Coast Highway,
  Oceanside, CA 92054
  (760) 433-5363


Search strategy
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Verizon Superpages company lookup

thanks alot for answering my question so quickly. I am a us soldier
living in Germany so you were more help than you could possibly
imagine.

Glad to be of help!  Please stop by again soon.