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  1. #1

    Default Biggest tires on stock 02?

    So my buddy needs new tires and wants bigger then the stock 245/70/16. I have heard of people putting 245/75/16 on but that's just a little difference. What about a 265/70/16 or possibly 265/75/16? Any info would be appreciated. Pics too maybe

  2. #2

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    First is it a 2wd or 4wd? On my 02, its 2wd and I can fit 275/55/20 that is alittle under 32" tire. So 265/75/16 would fit a 2wd. A 4wd sits alittle higher in the front so the tire size could go up if he does
    2002 Chevy Silverado & 1995 Ford Bronco

    02 Silverado: 50K miles, 20" Motto Rims, Flowmaster 50 Series
    95 Bronco: 160K miles, 4" Superlift, 33/12.5/15 Mickey Thompson
    01 Civic: 75K miles, DD
    -Erik



  3. #3

    Default

    Its 4wd. A 265/75/16 fits with no rubbing?

  4. #4

    Default

    Yeah it would fit no issues

  5. #5

    Default

    Quote Originally Posted by 03 SIERRA View Post
    Its 4wd. A 265/75/16 fits with no rubbing?
    I would add that when Changing the Overall Diameter of your Tire Size, make sure to have the Vehicles Computer Reprogrammed for the change in overall diameter with the New Tire Size,

    With the 2 tire sizes you've mentioned having the following overall diameter's,
    The Stock Size Tires................245/70/16.....has an Overall Diameter of.....29.5in's
    The one you've mentioned..... 265/75/16......has an Overall Diameter of.....31.7in's

    This Change in Overall Diameter means.....When the Speedometer reads 60mp.....Actual Speed will be 64.3mph or 7.2% Faster.

    MIKE


    99"SILVERADO
    5.3 l 3.73 l G80
    BLACK BEAR CUSTOM TUNE
    SNUGTOP l COLORMATCH l KATZKIN










  6. #6

    Default

    Quote Originally Posted by 99'HEARTBEAT View Post
    I would add that when Changing the Overall Diameter of your Tire Size, make sure to have the Vehicles Computer Reprogrammed for the change in overall diameter with the New Tire Size,

    With the 2 tire sizes you've mentioned having the following overall diameter's,
    The Stock Size Tires................245/70/16.....has an Overall Diameter of.....29.5in's
    The one you've mentioned..... 265/75/16......has an Overall Diameter of.....31.7in's

    This Change in Overall Diameter means.....When the Speedometer reads 60mp.....Actual Speed will be 64.3mph or 7.2% Faster.
    x2 what 99 said...

  7. #7
    Jr. Mechanic djthumper's Avatar
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    Default

    Sorry that I missed this thread before.

    Quote Originally Posted by ChromeSilver02 View Post
    Yeah it would fit no issues
    The largest tire that will fit a stock Trailblazer is a 30.6" tire on stock wheels. That equates to 265/70R16, this limit is due to the design of the steering knuckle. If you have aftermarket wheels with a 25mm offset you may fit the 265/75R16 it will clear the steering knuckle but will rub on the fender liner.

    Quote Originally Posted by 99'HEARTBEAT View Post
    I would add that when Changing the Overall Diameter of your Tire Size, make sure to have the Vehicles Computer Reprogrammed for the change in overall diameter with the New Tire Size,

    With the 2 tire sizes you've mentioned having the following overall diameter's,
    The Stock Size Tires................245/70/16.....has an Overall Diameter of.....29.5in's
    The one you've mentioned..... 265/75/16......has an Overall Diameter of.....31.7in's

    This Change in Overall Diameter means.....When the Speedometer reads 60mp.....Actual Speed will be 64.3mph or 7.2% Faster.
    GMT 360s can not make the adjustments prior to 2006 models in the computer. You can get the PCM retuned through PCM4less but they can not adjust the speedometer on anything older than the 06.
    2006 Trailblazer 4X4, 2.5" lift, Z71 rear springs, Skyjacker rear shocks
    Larry- KC7QJO

  8. #8

    Default

    So I should probably go with a 265/70/16 instead of a 265/75/16 since it will be on stock wheels?

  9. #9
    Jr. Mechanic djthumper's Avatar
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    Default

    Quote Originally Posted by 03 SIERRA View Post
    So I should probably go with a 265/70/16 instead of a 265/75/16 since it will be on stock wheels?
    Definitely, unless you want to buy some wheel spacers to get them away from the steering knuckle.

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