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stock tire size??

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by Itali83, May 6, 2001.

  1. Itali83

    Itali83 1/2 ton status

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    I have a 87 Jimmy. I was wondering what the stock tire size would be for my truck. I have 31 BFG's AT KO's on it now, there were 235 70 r 15's on it when I got it but I don't think that was stock size, maybe but I wanna know for sure. I want to know this because I know my speedo is off but I don't know how much, Just yesterday a friend was following me on the highway and I lost him, I never went faster than 70 by my speedo, but he said he was doing 80 and couldn't keep up, Uh oh. I found a site that does speedo calculations but it needs the orig size of tire, which I don't have. I just think the tires that were on it were too small, but like I said I don't know. Oh, being the smart one, I don't remember the site with the speedo calculations on it so if anyone does, can you give the link to me also[​IMG] Please and thank you.
    Ben 87 Jimmy
    <A target="_blank" HREF=http://www.bens87toy.coloradok5.com>http://www.bens87toy.coloradok5.com</A>
     
  2. mudhog

    mudhog THEGAME Staff Member Super Moderator

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    dont quote me but i think stock is 29 or 30inch

    77blazer see it at<A target="_blank" HREF=http://community.webshots.com/user/ssmith6333>http://community.webshots.com/user/ssmith6333</A>[​IMG]
     
  3. wayne

    wayne 3/4 ton status

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    My 89 has 31's from the factory. Look on the drivers door for a tag that should have the stock tire size.

    <A target="_blank" HREF=http://jamonline.homestead.com/fromthegroundupK54x4/89Jimmy.html>http://jamonline.homestead.com/fromthegroundupK54x4/89Jimmy.html</A>
    <font color=blue>Happy Trails<font color=blue>
    <font color=blue>Wayne<font color=blue>
     
  4. Twiz

    Twiz 1/2 ton status

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    Check the door panel or glove box, It might have the stock tire size and inflation pressure chart. I'm not sure if they have it on blazers, but most of the new stuff does. All my tags are missing/damaged or painted over so I don't have anything else for ya.

    Twiztid
     
  5. Itali83

    Itali83 1/2 ton status

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    Oh by the way, I have the ralley wheels, I notice most of the trucks that had the aluminum wheels had 31 stock, but the ralley wheels didn't. I'm pretty sure the stock tire size was 235 75 r 15. not sure. Thanks for the info guys, hopefully someone will know for sure. My door tag is no loner there either. Thanks.
    Ben 87 Jimmy
     
  6. riz

    riz 3/4 ton status

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    <font color=purple>P235-75-15's

    L8r,
    . Riz . <A target="_blank" HREF=http://www.geocities.com/rizmonkey>http://www.geocities.com/rizmonkey</A>

    [​IMG]
     
  7. Blazer_Boy

    Blazer_Boy 1/2 ton status

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    28.9 inches is the 235 tire size.

    <A target="_blank" HREF=http://www.geocities.com/bigkern76>http://www.geocities.com/bigkern76</A>
     
  8. Itali83

    Itali83 1/2 ton status

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    thanks guys. anyone know the address to the speedo calculator? I'm gonna try a search now but I suck at computers. Wish me luck!
    Ben 87 Jimmy
    <A target="_blank" HREF=http://www.bens87toy.coloradok5.com>http://www.bens87toy.coloradok5.com</A>
     
  9. weisel

    weisel 1/2 ton status

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    mine is stock and has 238/75/15s. I hate em, they are so tinny. But you would be suprised where these 40 dollar tires have taken me.

    Insurred by Smith & Wesson
     

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