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2.73 to 3.73

This is a discussion on 2.73 to 3.73 within the Drivetrain forums, part of the LSx Technical Help Section category; definitally gonna happen question is does a 3.73 gear fit the 2.73 carrier i have if i have to buy ...

  1. #1
    Member silverz28camaro's Avatar
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    sebring silver
    2000 z28

    2.73 to 3.73

    definitally gonna happen

    question is does a 3.73 gear fit the 2.73 carrier i have

    if i have to buy a carrier i will get the 12 bolt

  2. #2
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    you can buy 3.73 gears made for the 2 series carrier. That is what I have.

  3. #3
    Member silverz28camaro's Avatar
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    sebring silver
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    how is it holding up or with drag radials

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    Member silverz28camaro's Avatar
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    sebring silver
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    well a $190 gears set looks better then a 2000 rear axle, not saying it wouldn't be worth it but im not running a stall it it so the 10 bolt should be fine, by the way whatexactly breaks in those 10 bolts,

  5. #5
    Junior Member turbotko's Avatar
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    I highly do not recommend running the spacer on your 2 series carrier to make a 3 series gear work. There are a few companies making 3 series gears that fit the 2 series carrier though.

    As far as what breaks in the 10 bolt........everything.

  6. #6
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    Quote Originally Posted by silverz28camaro View Post
    how is it holding up or with drag radials
    It has held up great so far. I cut 1.68 60fts with BFG DRs. II have heard that the thick cut gears made for 2 series carriers actually hold up better because of the thickness. Not sure if its true but I have read it here or at tech.
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  7. #7
    Member silverz28camaro's Avatar
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    sebring silver
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    well i think i will give it a try even if i do end up going with a 12 bolt couldn'l i sell the 3.73 posi to a truck guy with a 4.3 , or will it not bolt up, maybe i can sell him the gears and carrier

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