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10 Bolt Third Member, 2.23 Gear Ratio

Discussion in 'The Hokey Ass Message Board' started by Candy-Man, May 9, 2010.

  1. Candy-Man
    Joined: Mar 21, 2006
    Posts: 1,698


    Looking for the Chev car which had a 10 bolt, 2.23 ratio third member ? Anyone have any idea's.... Diesel powered possibly....

    No it is not for the street, it is for a Bonneville car...
  2. Hubbcat
    Joined: Oct 15, 2002
    Posts: 562

    from Sweden

    bought a chevy malibu 78-80 axle that had some thing like that but it was the 7,5 type.
  3. Candy-Man
    Joined: Mar 21, 2006
    Posts: 1,698


    Thanks for your reply.... My buddy is running a 10 bolt in his Bonneville car with hydraluic tubing used for axle tubes adapted to Ford 9" axles..... However; he purchased the gears off of ebay and the seller was not aware of what the donor car was...
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  5. F&J
    Joined: Apr 5, 2007
    Posts: 11,501

    from CT

    Any chance there is the GM part number stamped into either gear? I thought some were marked?

    If so, do a google like " GM 3xxxxxx " sometimes you will get a match. If no match, bring the number to a friendly GM parts counter guy.

    best I can do.
  6. weim55
    Joined: Jul 14, 2004
    Posts: 73


    The only one I know of that's close is the 12 bolt car '65 to '70 could be special ordered with a 2.29. Very rare.

    Never heard of a 2.23 in an 8.5 10 bolt. Seems pretty likely though. I've seen 2.41s. Maybe try to see what GM full size diesel cars had for a ratio in the '78 to '84 era .

    Steve weim55 Colorado
  7. Larry T
    Joined: Nov 24, 2004
    Posts: 7,828

    Larry T

    A lot of the Firebirds with 8.5" 10 bolts had REAL tall gears. Does 2.29 sound right?
    Larry T
  8. Rudebaker
    Joined: Sep 14, 2007
    Posts: 1,582

    from Illinois

    You looking for a carrier or gears? I've never heard of 2.23 gears for a 10-bolt but I wouldn't be surprised. If you already have the gears a 2 series carrier from a 2.41 or 2.56 should work and I believe Larry T is correct on the 2.29 geared 'Birds. I think a lot of the late 70's early 80's full size GM's had 2.29's too.
  9. Candy-Man
    Joined: Mar 21, 2006
    Posts: 1,698


    Larry: You are probably correct on the gear ratio, as I was not sure on the ratio, just going from memory.......

  10. B Lawrence
    Joined: Nov 18, 2009
    Posts: 232

    B Lawrence
    from Ham.

    Neil......Garys 2.29 set is out of 78 malibu and his 2.41 set came out of a Irac eee taxi. Still running the 2.29"s no probs......see ya.
  11. Pete
    Joined: Mar 8, 2001
    Posts: 3,941



    I have one of those rear ends in my shop. It's a 10 bolt Posi.

  12. SafariTow
    Joined: Feb 19, 2010
    Posts: 38


    GM made a 2:14 in a 10 bolt metric 7.5 around late 70's through 84 i think, hard to find. monte carlo, regal, ect. I had to go with a 2:41 for my Diesel Hot Rod.
  13. lincolnolli
    Joined: Dec 1, 2008
    Posts: 90

    from Germany

    My 78 Chevy Monza came with 2.29 from the factory.
    10 bolt axle but 7.5"

  14. Hnstray
    Joined: Aug 23, 2009
    Posts: 8,103

    from Quincy, IL

    The '79 (only) Cadillac Seville has a 2.28 10 bolt ........either an 8.2 or 8.5......I have one I was planning to use on a pickup project...........The '79 also has 5 x 5" wheel bolt pattern........earlier versions ('76 & 77.....not sure about '78) have 5 x 4 3/4" wbp.............The width hub face to hub face is 59" (maybe 59 1/2) they are disc brake equipped but will take normal 10 bolt drum backing plates.

  15. Candy-Man
    Joined: Mar 21, 2006
    Posts: 1,698


    Excellent thanks guys....

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