Got gears?

Too much gear? Not enough? Discuss all your rear end and driveshaft questions here.

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  1. racenu

    12 bolt swap

    racenu, Jan 3, 2007
    Replies:
    10
    Views:
    1,519
    Sportwagon400
    Jan 10, 2007
  2. stged455

    12 bolt swap

    stged455, Jun 4, 2011
    Replies:
    2
    Views:
    628
    stged455
    Jun 5, 2011
  3. stged455

    12 bolt swap

    stged455, Jun 4, 2011
    Replies:
    6
    Views:
    969
    knucklebusted
    Jun 5, 2011
  4. Idaho67gs400

    12 bolt swap in 67 GS 400

    Idaho67gs400, Jan 8, 2012
    Replies:
    10
    Views:
    1,480
    wkillgs
    Jan 10, 2012
  5. 1970 GS 4spd

    12 bolt swap into a 73 Century

    1970 GS 4spd, Oct 5, 2008
    Replies:
    6
    Views:
    516
    monzaz
    Oct 6, 2008
  6. rmstg2

    12 Bolt to 8.5 10 Bolt Swap

    rmstg2, Feb 11, 2012
    Replies:
    6
    Views:
    913
    monzaz
    Feb 13, 2012
  7. rack-attack

    12 bolt type 0

    rack-attack, Oct 21, 2009 ... 2
    Replies:
    25
    Views:
    7,727
    stage1 Rick
    Nov 20, 2009
  8. knucklebusted

    12 Bolt Value?

    knucklebusted, Jun 5, 2011
    Replies:
    8
    Views:
    1,441
    monzaz
    Jun 7, 2011
  9. DelmarHD

    12 bolt versus 10 bolt driveshaft length

    DelmarHD, Apr 10, 2007
    Replies:
    1
    Views:
    1,690
    oPh
    Apr 10, 2007
  10. sean Buick 76

    12 bolt vs 8.5

    sean Buick 76, Nov 9, 2021
    Replies:
    10
    Views:
    775
    monzaz
    Dec 3, 2021
  11. idahoskylark

    12 bolt w no mounts - repairable??

    idahoskylark, Jul 14, 2011
    Replies:
    12
    Views:
    2,232
    idahoskylark
    Jul 27, 2011
  12. bugeater

    12 Bolt with 4.88's

    bugeater, Aug 24, 2012
    Replies:
    8
    Views:
    1,229
    gstewart
    Aug 27, 2012
  13. mk333

    12 bolt WT code?

    mk333, Aug 3, 2009
    Replies:
    2
    Views:
    506
    mk333
    Aug 3, 2009
  14. 67RivRacer

    12 Bolt, 28 Spline?

    67RivRacer, May 25, 2008
    Replies:
    11
    Views:
    2,930
    Bad Buick
    Jun 25, 2008
  15. Woodie

    12 bolt/9"...

    Woodie, Feb 12, 2007
    Replies:
    3
    Views:
    618
    Stage2Scott
    Feb 14, 2007
  16. scubasteve455

    12 bolts install question

    scubasteve455, Apr 29, 2018
    Replies:
    12
    Views:
    631
    scubasteve455
    May 3, 2018
  17. Poconobuick

    12 Detroit Locker Problem

    Poconobuick, Sep 17, 2008
    Replies:
    0
    Views:
    494
    Poconobuick
    Sep 17, 2008
  18. 69GS400s

    12-bolt Chevy Posi gear swap ???

    69GS400s, Feb 1, 2007
    Replies:
    10
    Views:
    3,451
    72GSX4ME
    Feb 2, 2007
  19. Kevin.1

    12-bolt compatibility?

    Kevin.1, Feb 7, 2006
    Replies:
    1
    Views:
    526
    10sec 455
    Feb 7, 2006
  20. Michael Evans

    12-bolt locker unit

    Michael Evans, Apr 8, 2011
    Replies:
    6
    Views:
    837
    Michael Evans
    Apr 9, 2011
  21. Nothingface5384

    12bolt centersection welded to 10bolt housing

    Nothingface5384, Mar 18, 2011
    Replies:
    11
    Views:
    1,352
    monzaz
    Apr 10, 2011
  22. agetnt9

    1350 rear yoke to smaller drive shaft end

    agetnt9, Jun 13, 2018
    Replies:
    4
    Views:
    333
    agetnt9
    Jun 13, 2018
  23. 7 skylark 1

    1350 yokes & u-joints ?

    7 skylark 1, Dec 15, 2006
    Replies:
    2
    Views:
    752
    7 skylark 1
    Dec 16, 2006
  24. 1drwgn

    1410 Flange yoke

    1drwgn, Oct 29, 2009
    Replies:
    7
    Views:
    2,418
    1drwgn
    Nov 4, 2009
  25. century66r

    1955 century rear end

    century66r, Feb 18, 2007
    Replies:
    1
    Views:
    1,273
    oPh
    Feb 19, 2007
  26. poison heart

    1959 BOP Third Member Swap

    poison heart, Feb 14, 2009
    Replies:
    3
    Views:
    917
    poison heart
    Feb 14, 2009
  27. poison heart

    1959 Posi

    poison heart, Jul 23, 2007
    Replies:
    0
    Views:
    370
    poison heart
    Jul 23, 2007
  28. cluxford

    1961 Lesabre - Axle seals leaking

    cluxford, Feb 23, 2014
    Replies:
    18
    Views:
    1,357
    frankie62
    Mar 27, 2014
  29. Sypher

    1961 LeSabre..posi?

    Sypher, Apr 13, 2015
    Replies:
    7
    Views:
    1,261
    56buickboy
    Apr 21, 2015
  30. Mr62Buick

    1961-1965 positractions....

    Mr62Buick, Mar 13, 2009
    Replies:
    9
    Views:
    864
    CTX-SLPR
    Mar 24, 2009
  31. LARRY70GS

    1962 4 lug to 5 lug wheels

    LARRY70GS, May 27, 2010
    Replies:
    1
    Views:
    858
    Golden Oldie 65
    May 27, 2010
  32. Bryon

    1962 Buick 9 3/8 rear ends

    Bryon, Mar 17, 2018 ... 2
    Replies:
    36
    Views:
    5,216
    monzaz
    Nov 25, 2023
  33. duchan

    1962 buick special rear axel bearing

    duchan, Mar 13, 2010
    Replies:
    3
    Views:
    695
    flynbuick
    Mar 14, 2010
  34. monzaz

    1963 64 65 RIV rear diff. look what I found

    monzaz, Jul 6, 2008
    Replies:
    5
    Views:
    632
    monzaz
    Jul 7, 2008
  35. foofer

    1963 Buick Lesabre Third Member

    foofer, Dec 23, 2013
    Replies:
    3
    Views:
    1,771
    monzaz
    Jan 14, 2014
  36. Clanceman427

    1964 A body driveshaft interchange?

    Clanceman427, Dec 16, 2012
    Replies:
    3
    Views:
    361
    wkillgs
    Dec 17, 2012
  37. Tim_D

    1964 BOP Axle - R&P Options

    Tim_D, Aug 26, 2019
    Replies:
    17
    Views:
    1,016
    BrianTrick
    Sep 6, 2019
  38. Me235

    1964 Buick 9 3/8 drop out spiders

    Me235, Jun 2, 2018
    Replies:
    2
    Views:
    457
    Me235
    Jun 3, 2018
  39. Bill Nuttle

    1964 Cutlass Axle

    Bill Nuttle, Jan 7, 2019
    Replies:
    10
    Views:
    661
    monzaz
    Jan 8, 2019
  40. cobravii

    1964 Electra rear wheel bearings

    cobravii, Jan 29, 2015
    Replies:
    2
    Views:
    781
    monzaz
    Feb 17, 2015
  41. robert v

    1964 Pontiac Tempest rear compatibility for 1965 Skylark

    robert v, Jun 21, 2020
    Replies:
    12
    Views:
    874
    64 skylark mike
    Jun 22, 2020
  42. jamhdit

    1964 Posi

    jamhdit, Jan 1, 2009
    Replies:
    7
    Views:
    635
    monzaz
    Jan 9, 2009
  43. LowFlyLark

    1964 Skylark, 300 ci, 200 4R, 2.78:1. HELP

    LowFlyLark, Feb 26, 2011
    Replies:
    1
    Views:
    787
    BillA
    Feb 26, 2011
  44. SpecialWagon65

    1965 axle/posi questions-what is in there?

    SpecialWagon65, Sep 16, 2004
    Replies:
    4
    Views:
    646
    SpecialWagon65
    Sep 21, 2004
  45. BuickJack

    1965 Buick Skylark rear axle shaft (right side)

    BuickJack, Sep 18, 2015
    Replies:
    0
    Views:
    668
    BuickJack
    Sep 18, 2015
  46. uh34d

    1965 Lark GS 10 Bolt Posi

    uh34d, Mar 7, 2013
    Replies:
    4
    Views:
    886
    monzaz
    Mar 7, 2013
  47. 65mildcustomRIV

    1965 Riv rear gears, where to find 3.08/3.42

    65mildcustomRIV, Feb 1, 2006
    Replies:
    1
    Views:
    617
    CTX-SLPR
    Feb 1, 2006
  48. robert v

    1965 skylark rear end swap question.

    robert v, Oct 23, 2017
    Replies:
    13
    Views:
    1,896
    Donuts & Peelouts
    Nov 10, 2017
  49. leadsled01

    1965 wildcat POSI ????

    leadsled01, Mar 17, 2008
    Replies:
    11
    Views:
    1,412
    buickbonehead
    Mar 19, 2008
  50. freakzilla

    1966 Chevelle 12 Bolt Posi

    freakzilla, Jan 22, 2014
    Replies:
    7
    Views:
    2,026
    jim larson
    Apr 9, 2014
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