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  1. #11
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    My bad I guess, I assumed it.

    i measured tires this morning, and they are 35" tall. 305/60/20, tire rack has them listed as 35.2
    2004 Chevy Colorado
    LS1 5.7 swap/TBSS rear axle swap

  2. #12

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    Quote Originally Posted by SurrealOne View Post
    Umm, I hate to disagree, but I must because that's a very broad statement which, when applied to all 305's ... isn't accurate. A 305/75R17 is, indeed, exactly 35" tall, but:

    • A 305/70R16 is only 32.8" tall
    • A 305/70R17 is only 33.8" tall
    • A 305/65R18 is only 33.6" tall
    • A 305/70R18 is 34.8" tall (often rounded to 35", but technically, it's not)


    You get the idea -- 305 is a width ... which has to be used in conjunction with wheel size and tire profile to compute height. Here's a useful tool: http://www.miata.net/garage/tirecalc.html
    Good info!
    2010 GMC SIERRA CREW CAB (Silver) 4x4, ReadyLift 2.5" Level Kit, 305/60/18 Dick Cepek Mud Country, Go Rhino Nerf Bars, Husky Liners front and rear, Bushwacker Bed Rail Caps, Custom tuned. 4:11's

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