1. Welcome To GMTruckClub.com!

    The #1 Chevy Truck Forum Online
    Online since 2004, we are the #1 Chevy Truck & SUV forum and user community. If you have any questions about your Chevy or GMC Truck, SUV or Crossover, or just want to connect with other GM owners and enthusiasts around the world, you've found the best place on the internet to do that.

    Join Today ~ It's Free
    Registering is Free and Easy! Hope to see you on the forums soon!

Max Tire Size on a 91 Chevy 1500 4x4

Discussion in 'Wheels & Tires' started by deadonat100yards, Nov 25, 2008.

  1. deadonat100yards

    deadonat100yards New Member

    wat is the biggest tire i can put on a 91 chevy 1500 4x4 stock suspension and rims without modifying the suspension or lifting/cutting anything? thanks
  2. MrShorty

    MrShorty Moderator Staff Member 1000 Posts

    Standard answer for OBS 4x4's is 285/75/16 (about 33x11.50) usually fits. Occasionally someone will need to do a little trimming to keep those wheels from rubbing, so if you absolutely want no risk of rubbing or trimming, you may want to limit yourself to 32x11.50 (265/75/16)
  3. deadonat100yards

    deadonat100yards New Member

    thanks. i appreciate it.
  4. Pete95Sierra

    Pete95Sierra New Member ROTM Winner 1000 Posts

    I had 285/75R16 on my 95 4x4 truck with stock suspension
  5. deadonat100yards

    deadonat100yards New Member

    really? i got 265/75/R16s on my truck right now. are the 285s wider? and did you cut out the fenders or anything? thanks
  6. MrShorty

    MrShorty Moderator Staff Member 1000 Posts

    The 1st number in metric tire sizes is the nominal tread width in mm, so, yes 285's are about 20 mm (~1 inch) wider than 265's.
  7. devilsalmostfree

    devilsalmostfree New Member

    i had a 89 4X4 chevy silverado, ran 285/75/16's! no rub or anything!
  8. Pete95Sierra

    Pete95Sierra New Member ROTM Winner 1000 Posts

    nope didnt have to cut a thing. they fit the wheel wells pretty well tho but I had zero issues running them on the stock truck. however, I did have aftermarket wheels, but I believe they were the same specs as stock wheels
  9. Kamd91GMC

    Kamd91GMC New Member

    same here... 285's

Share This Page