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  1. #1
    Jr. Apprentice
    Join Date
    Aug 2006
    Location
    hard hittin new britain ct.
    Posts
    29

    Default time for new tires

    my truck is due for new tires. at least the rears need it bad but the front still have a way to go. if i were to change the rears would it be crazy thinking to buy 1 tire put the spare on as another rear and take the best of the used rears and use it as a spare. doesn't make sense to me to leave a brand new tire under the truck going unused.
    does that make sense to anyone?
    2008 Silverado 2500 HD Crew cab LTZ 6.0

  2. #2

    Default

    Picking your best worn down tire and using it as a spare is fine. All you need your spare for is to get you to a shop to plug the leak in your other tire..

  3. #3

    Default

    Just be careful that the one new tire you purchase is the same diameter as the new spare.

    For example, I bought 30x9.50x15 tires for my Jeep. They looked small for a 30" tire but I didn't look any further into it.

    Yesterday, I brought home a `97 Suburban with very worn 245/65/16 tires which are supposed to be 30.5" tall. I figured I'd throw on the Jeep wheels and tires since there is only a half inch of difference, but it turned out that the Jeep 30" tires made by Pro-comp are actually only 29.3" tall.

    Other tire manufactures 30" tires are actually 30" tall and some are 30.3" tall, etc.

    If your spare tire is a Goodyear 265/70-17, which is supposed to be 31.7" tall and the new tire is a Cooper 265/70-17 which turns out to be only 31" tall, then you could cause some problems in your differential.

    Just check the actual specs from the manufacturer to ensure both tires will be the same diameter.

  4. #4

    Default

    I think as long as you don't have a rear locker you should be fine with a slight differance in tire diameter.

  5. #5
    Jr. Apprentice
    Join Date
    Aug 2006
    Location
    hard hittin new britain ct.
    Posts
    29

    Default

    i dont plan on changing tire size. i'm going to buy the exact brand model and size as whats on the truck now.
    2008 Silverado 2500 HD Crew cab LTZ 6.0

  6. #6
    Sr. Mechanic SliverZ71's Avatar
    Join Date
    Jun 2010
    Location
    Virginia Beach, Virginia
    Posts
    184

    Default

    You better check you spare tire then because on my last 2 truck the spare wasn’t the same size as what was on my truck heck on the Avalanche the spare was a 16” and the tires were 17” on the truck.
    Hi my Name is Steve I have a 2004 Silverado Z71 Crew cab, silver berch in color and Live in Virginia Beach Va. I have installed JBA Stainless Steel Shorty Headers with Flowmaster 40, K&N 77 air intake, Taylor 409 Wires , Diablosport Predator Programer, Weston Bull Bar, Carage Works Grill, ReadyLift Leveling kit, Pioneer Navigation system, Viper two way Alarm with remote start, Rino hitch step, Factor 20 inch wheels with Nitto Graplers and that's it for now.
    :cool: Steve

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