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12 bolt diff. questions

Discussion in 'The Garage' started by odoa3, May 4, 2004.

  1. odoa3

    odoa3 1/2 ton status

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    I was given a 12 bolt axle. It has an open diff. that I was planning to weld and put in my 12 bolt. I have a trashed Eaton posi in it right now. My rear end is a 3.73- I believe the open diff. is a 2.7? (can't remember the last number right now). The question- can I just use the 3.73 ring and pinion in the open diff carrier? Or, do I need a different carrier? First attempt at diff work so be merciful! /forums/images/graemlins/dunno.gif Thanks!
     
  2. K5MONSTERCHEV

    K5MONSTERCHEV 1/2 ton status

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    Youd have to check what the carrier breaks are, I dont remember off the top of my head.
     
  3. odoa3

    odoa3 1/2 ton status

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    Any idea where I could find this info?
    Thanks.
     
  4. duece21

    duece21 1/2 ton status

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    Case Changes,
    2.73 and down, Low 3.07-3.42 and High 3.73-4.56
     
  5. Beast388

    Beast388 1/2 ton status

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    [ QUOTE ]
    Case Changes,
    2.73 and down, Low 3.07-3.42 and High 3.73-4.56

    [/ QUOTE ]

    What he said! /forums/images/graemlins/waytogo.gif
     
  6. odoa3

    odoa3 1/2 ton status

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    Case changes? You mean the carrier itself, correct? So no way I could use the 2.7? carrier with the 3.73 gears, right?
    Thanks for the info.
     
  7. Beast388

    Beast388 1/2 ton status

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    [ QUOTE ]
    Case changes? You mean the carrier itself, correct? So no way I could use the 2.7? carrier with the 3.73 gears, right?
    Thanks for the info.

    [/ QUOTE ]

    Correct. The carriers for the 3.73's are quite common......shouldn't be too difficult to find the one you need. /forums/images/graemlins/waytogo.gif
     

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