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  1. #1

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

    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

    - - - Updated - - -

    or any tire size u think will look good.
    Last edited by Steve; 11-08-2013 at 09:36 AM.

  2. #2

    Default

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

  3. #3

    Default

    all depends on your preference...
    personally i like wider tires...
    2000 Chevrolet Silverado

    Powertrain:
    4.3L V6, 4L60E, 2WD, Single Cab
    Performance:
    Airaid CAI
    Poweraid TB Spacer
    Flowmaster 10-series exhaust (dumped)
    BLACKBEAR TUNED!!!
    Edge CS insight monitor
    4.10 gears
    Limited-slip differential
    LS-1 Dual Electric fans
    Corvette tranny servo swap

    Audio:
    Head Unit: Alpine
    Speakers: Alpine SPR-60C 6.5" component set, 4X6 Infinity Kappas
    Subs: 2-12" Kicker CVT's
    Amps: Alpine-M1000 (subs), Alpine MRX-F65 (Speakers)


    Tires/Wheels:
    305/70R16 NITTO Terra Grapplers
    16" PROCOMP 7089's
    Suspension:
    2" leveling kit
    3" Fabtech Spindle Lift Kit
    Front/Rear-Bilstein 5100 shocks

    Lighting:
    FRONT
    35W HID Low Beams
    RECON LED smoked roof cab lights
    REAR
    HELLA LED taillights and 3rd brakelight
    HELLA FF-75 Aux. Reverse Lamps
    RIGID dually D2, flush mount, wide beam
    Accessories:
    Hawk HPS Brake pads
    Russell braided steel brake lines
    Powerstop-red powdercoated brake calipers
    Powerslot Cryo brake rotors
    EGR in-channel window visors

  4. Likes Pikey liked this post
  5. #4

    Default

    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

  6. #5

    Default

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

  7. #6

    Default

    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

  8. #7

    Default

    no there would be no power loss, that only changes when tire diameter changes

  9. #8

    Default

    but the more drag, the more it affects your mpg

  10. #9

    Default

    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.

    1995 Silverado 4x4
    6" BDS Suspension Lift-3" Body Lift-Add A Leaf in rear -Trailmaster SSV Shocks-Duel Steering Stabilizer Kit -AirAid Cold air intake-
    4.56 Gears with Detroit Auburn Locker-Pro-Comp Traction Bars with duel shocks-Aluminum Skid Plate Kit-38.5" x 16.5" Mickey Thompson Baja Claws-Constant Dropping fuel gauge

    2005 Yukon XL Jet Power Programmer, Bilstein Shocks, Bilstein rear springs, Helwig Anti-sway bars, EGR Window Visors, EGR Hood Shield, Denali Headlights, Headlight harness upgrade, GE NightHawk Bulbs, White Night Rear lighting system, Russell Braided SS brake lines, PowerStop Brake pads, PowerStop cross drilled and Slotted Rotors, http://www.gmtruckclub.com/forum/sho...5-GMC-Yukon-XL
    2002 Silverado ext cab 2wd (Sold)
    2003 Yukon XL (Totaled)

  11. #10

    Default

    Changed the title to be more descriptive.

    Steve
    10 Chevy Traverse LT AWD
    02 Chevy Trailblazer LS (110K+ miles - loaded except for 4WD - WRECKED!)
    99 Chevy Cavalier LS (105K+ miles - commuter car)
    78 Chevy Suburban Silverado (454, 3/4 ton)
    62 GMC 3/4 ton Pickup (350 police interceptor)

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