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gov. locked 12 bolt..info needed

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by CAROLINAK5, Feb 8, 2002.

  1. CAROLINAK5

    CAROLINAK5 1/2 ton status

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    lexington, north carolina
    i have a 12 bolt geared 3:08 with a gov lock. my question is......if i gear this 4:10 or 4:56, can i still use the gov lock? will i have to buy a new carrier?



    when all else fails..............HIDE!!!!!!!!!!!!!!!!![​IMG]

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  2. Hossbaby50

    Hossbaby50 3/4 ton status

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    I don't know if I would waste my time with a gov lock. I had one in my 10 bolt until it exploded during a hard take off on the street. That was with 3.73's, I wouldn't risk putting a gov lock in with 4.10's or 4.56's unless they made some real progress with the 12 bolt govlock. My 10 bolt govlock sucked.

    My Chevy isn't broken, its just out of gas.
     
  3. HarryH3

    HarryH3 1 ton status Author

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    Carrier breaks from Randy's Ring and Pinion web site:

    12 Bolt Truck 2.73 &amp; down / 2.76 to 3.42 / 3.73 &amp; up #


    <font color=black>HarryH3 - '75 K5</font color=black>
    <a target="_blank" href=http://www.angelfire.com/super/ThunderTruck>www.angelfire.com/super/ThunderTruck</a>
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  4. HarryH3

    HarryH3 1 ton status Author

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    According to the chart listed here <a target="_blank" href=http://www.randysringandpinion.com/a-gm.html>http://www.randysringandpinion.com/a-gm.html</a> you can get 4.10's and 4.56's with extra thick ring gears that will fit your existing carrier. [​IMG] But since you have to go inside anyway to change the gears, you might as well think about installing a better posi or a locker while you're in there.

    <font color=black>HarryH3 - '75 K5</font color=black>
    <a target="_blank" href=http://www.angelfire.com/super/ThunderTruck>www.angelfire.com/super/ThunderTruck</a>
    It's a great day to be alive...
     

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