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10 bolt rear definately on its way out!!!!!!

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by 90K5, Sep 9, 2001.

  1. 90K5

    90K5 1/2 ton status

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    I know I've had lots of posts about this, but its definately happening!!! Driving down the road today, and heard a faint howl fro mthe rear end that gradually got worse. After about 15 miles, I could hear the gears moving very distinctly whenever I coasted. Drove around a little more hoping to break the thing, but it seemed to get better...hopefully It'll break soon...its got 146K on it, 3.42's running 33's. Guess I have to go to a 14bolt SF with 3.73's or 4.11's now!!!!! Too bad it happened right after a $1200 tranny rebuild and an $800 set of tires....

    90K5<P ID="edit"><FONT class="small">Edited by 90K5 on 09/09/01 08:35 PM.</FONT></P>
     
  2. Jersey

    Jersey 1/2 ton status

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    hey 90. My 10b is ready to explode too and i cant wait! ha. I'm going 12b or 14b also but think i'm going to keep my 3.42's, cause $'s tight and winter will be here before i can afford gears and i want 4wd. How does the 3.42 run with the 33's? A real dog outa the hole or acceptable? Thanks.

    '91K5 - 350, 700R4, NP241, Flowmaster
    <a target="_blank" href=http://pages.zdnet.com/len1313/blazer>click here for pics</a>
     
  3. DMK

    DMK 1/2 ton status

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    33's are ok with 3.42's. Your 10 bollt has 30 spline axles so a 12 bolt is not that much better. Save your money for 14bolt ff. And go with some 4.11's.
     
  4. Brians 60s

    Brians 60s 1/2 ton status

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    I have a brand new in the crate ff 14 bolt with 4.56's with your name on it for only $775. I can also get a 50% break on shipping.

    IT'S A 1 TON THING.... IF I HAVE TO EXPLAIN IT, YOU WOULDN'T UNDERSTAND!!!
     
  5. 90K5

    90K5 1/2 ton status

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    I'm going to try to get a 14bolt SF from a junkyard for $150-$200. All the ones I've seen are 3.73's though, and 8 lug. I'm going to see about a machine shop redrilling them to 6 lugs, and buying the drums for a 6 lugger. I don't want a FF cause of the bolt pattern, and weight...anyway, I need opinions on gears. I really love my 3.42's on the highway, I've got really good acceleration at 70+, and don't want to lose my highway speed with 4.10's. Do you think it will affect it that much? I would really like 4.10's around town, but dont know how they will be on the highway, so I may compromise and get 3.73's...then again, I'll be spending $400 to go from 3.42's to 3.73's for the front...any input?

    90K5
     

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