Help! Tire Problems on 02 Duramax w/ 8" lift kit

Discussion in 'Wheels & Tires' started by lifted6.6, Sep 1, 2013.

  1. lifted6.6

    lifted6.6 New Member

    I just was given my first truck. it is a 2002 gmc duramax. I installed a 8" lift kit and 37x14x20 inch tires. I am looking to downsize to a 35 inch tire but I don't want the truck to be top heavy. so should I run 35x12.50 or 35x13.50? thanks

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    or any tire size u think will look good.
    Last edited by a moderator: Nov 8, 2013
  2. 95C1500

    95C1500 Member 2 Years 100 Posts

    how wide are your wheels? 9? 10? etc...
  3. reggiecab2000

    reggiecab2000 Epic Member 5+ Years 1000 Posts

    all depends on your preference...
    personally i like wider tires...
  4. lifted6.6

    lifted6.6 New Member

    my wheels are 10. and I prefer wider too but will I lose a lot of power? engine is stock besides 5 inch straight pip to 8 inch ti
  5. reggiecab2000

    reggiecab2000 Epic Member 5+ Years 1000 Posts

    width of your tire has nothing to due with power...
    there is pros and cons:
    pros: increased traction
    cons: more rolling resistance (drag)
  6. lifted6.6

    lifted6.6 New Member

    so I will not lose power due to wider tires? im really leaning to 36x13.50x20 tires because the 35s would look small with a 8 inch lift
  7. reggiecab2000

    reggiecab2000 Epic Member 5+ Years 1000 Posts

    no there would be no power loss, that only changes when tire diameter changes
  8. 95C1500

    95C1500 Member 2 Years 100 Posts

    but the more drag, the more it affects your mpg
  9. Pikey

    Pikey Moderator Staff Member 3 Years ROTM Winner 5000 Posts

    Yes, more drag or rolling resistance will effect mpg. But, in my personal opinion tall skinny tires look silly on a truck. I ran 36's x 14.5 when my 95 was my daily driver then I switched to 38.5x 16.5, I ran Dick Cepek radial fun country tires when I had the 36. The tread pattern is not aggressive and they rode very nicely. A less aggressive tread pattern equals less rolling resistance. Lets face it though, running 35's you are not all that worried about the 1/4 of a mile that you are going to lose per gallon (just an estimate), you have a duramax which is plenty of torque, and you are switching from a 37" tire, with any width in a 35" tire you are doing to notice an increase in power.

    The biggest downfall I see to a wider tire is keeping the paint clean. My 38's throw water and crap all over the side of the truck.
  10. ChevyFan

    ChevyFan The Sheriff Staff Member 5+ Years 1000 Posts

    Changed the title to be more descriptive.

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