Got gears?

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

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  1. maze

    driveshaft length

    maze, Dec 22, 2011
    Replies:
    11
    Views:
    1,665
    monzaz
    Dec 27, 2011
  2. Dstoltenberg

    Wheel stud knurl size

    Dstoltenberg, Aug 4, 2009
    Replies:
    3
    Views:
    1,663
    kick71
    Nov 2, 2009
  3. Esasky's85GN

    Is this rear end worth changing out my stock 8.5 10 bolt

    Esasky's85GN, Sep 20, 2017 ... 2
    Replies:
    24
    Views:
    1,662
    monzaz
    Sep 27, 2017
  4. mikethegoon

    12 bolt preload springs R/r

    mikethegoon, Mar 8, 2021 ... 2
    Replies:
    31
    Views:
    1,659
    BrianTrick
    Apr 6, 2021
  5. jr_

    1971 skylark - wanting 3.55 posi

    jr_, Mar 13, 2023 ... 2
    Replies:
    38
    Views:
    1,651
    LARRY70GS
    Jun 7, 2023
  6. agetnt9

    12 bolt chevy axle in 30 spline 10

    agetnt9, Feb 20, 2011
    Replies:
    4
    Views:
    1,645
    agetnt9
    Feb 23, 2011
  7. 455

    Buick 9 3/8" rear-end

    455, Nov 15, 2004
    Replies:
    8
    Views:
    1,644
    455
    Nov 17, 2004
  8. Wildcatnext

    Clunk in my rear end

    Wildcatnext, Jun 10, 2005
    Replies:
    9
    Views:
    1,642
    462CID
    Jul 6, 2005
  9. schmoe

    Posi Units?

    schmoe, May 8, 2015
    Replies:
    5
    Views:
    1,640
    LARRY70GS
    May 11, 2015
  10. tom65special

    rebuild 8.2 or find 8.5?

    tom65special, Aug 26, 2007
    Replies:
    9
    Views:
    1,637
    daward
    Aug 27, 2007
  11. 66rivnail

    66 Riviera Vibration finally gone!!

    66rivnail, Aug 29, 2013
    Replies:
    6
    Views:
    1,637
    lapham3@aol.com
    Sep 24, 2014
  12. Dalton69Skylark

    '69 Skylark Rear End needed

    Dalton69Skylark, Jan 26, 2021
    Replies:
    13
    Views:
    1,636
    monzaz
    Jun 1, 2021
  13. LouV

    Monkey Grip Posi

    LouV, Apr 25, 2018
    Replies:
    5
    Views:
    1,635
    BrianTrick
    Apr 27, 2018
  14. jamyers

    Need advice fast on GM posi carrier swap

    jamyers, Oct 24, 2005
    Replies:
    14
    Views:
    1,631
    jamyers
    Oct 26, 2005
  15. 66spcl

    66 special rear end blew helo

    66spcl, Feb 2, 2011
    Replies:
    8
    Views:
    1,630
    GStage1
    Feb 2, 2011
  16. BubbaJ

    slip n slide

    BubbaJ, Mar 8, 2020 ... 2
    Replies:
    22
    Views:
    1,630
    kingdaddycreel
    Jul 3, 2020
  17. racerxjj67

    8.5 rebuild/gear swap questions

    racerxjj67, Mar 14, 2013
    Replies:
    12
    Views:
    1,630
    monzaz
    Apr 7, 2013
  18. dre

    Help identify rear differential??

    dre, May 22, 2009
    Replies:
    3
    Views:
    1,629
    JZRIV
    May 23, 2009
  19. Insane Buick

    s-10 rear end?

    Insane Buick, Feb 4, 2006
    Replies:
    8
    Views:
    1,623
    Insane Buick
    Feb 10, 2006
  20. ceas350

    72 rear end how much can it be shortened

    ceas350, Oct 25, 2017 ... 2
    Replies:
    25
    Views:
    1,622
    ceas350
    Oct 28, 2017
  21. bos

    what do i have ?

    bos, Mar 21, 2011
    Replies:
    9
    Views:
    1,621
    Riviera KY.
    Apr 9, 2011
  22. od88fan

    ? about 8.2 pinion bearing

    od88fan, Aug 26, 2009
    Replies:
    15
    Views:
    1,616
    LARRY70GS
    Sep 10, 2009
  23. MDBuick68

    Rear u joint bolts

    MDBuick68, May 5, 2015
    Replies:
    11
    Views:
    1,612
    Mr. Sunset
    May 8, 2015
  24. Matt S

    How to Determin 8.2 Series Carrier

    Matt S, Jul 28, 2006
    Replies:
    7
    Views:
    1,607
    Matt S
    Jul 31, 2006
  25. CARHEX1

    will a 72 nova 8.5 posi carrier and gears work on my 72 skylark 8.5?

    CARHEX1, Dec 9, 2011
    Replies:
    9
    Views:
    1,604
    monzaz
    Dec 11, 2011
  26. Steve Craig

    12 bolt Olds Rear Question

    Steve Craig, Oct 8, 2004
    Replies:
    11
    Views:
    1,603
    quicksabre
    Oct 29, 2004
  27. Stagedcoach71

    Peg Leg 70 GS

    Stagedcoach71, Oct 17, 2015
    Replies:
    12
    Views:
    1,601
    Mark Demko
    Oct 23, 2015
  28. 70skylark350

    10 bolt posi carrier question....?????

    70skylark350, Jan 25, 2017
    Replies:
    16
    Views:
    1,597
    70skylark350
    Feb 19, 2017
  29. wilson1

    3.42 rear end

    wilson1, Mar 11, 2013
    Replies:
    10
    Views:
    1,593
    sean Buick 76
    Mar 16, 2013
  30. ShaneD

    70 Riviera Drive shaft center support

    ShaneD, Mar 28, 2008
    Replies:
    2
    Views:
    1,591
    ShaneD
    Mar 29, 2008
  31. 436'd Skylark

    pinion seal replacement

    436'd Skylark, Sep 26, 2005
    Replies:
    7
    Views:
    1,589
    monzaz
    Oct 3, 2005
  32. Freakazoid

    # of axle splines on 1971.

    Freakazoid, Oct 5, 2011
    Replies:
    5
    Views:
    1,589
    Freakazoid
    Oct 8, 2011
  33. torqueaddict

    what rear is a direct swap for my 1972 Skylark 10 bolt?

    torqueaddict, Apr 20, 2014
    Replies:
    10
    Views:
    1,589
    torqueaddict
    Apr 27, 2014
  34. KDC455

    71-72 10 Bolt Vs 12 Bolt

    KDC455, Dec 22, 2005
    Replies:
    3
    Views:
    1,588
    oPh
    Dec 23, 2005
  35. buick455

    Whats a good middle of the road gearing for a 64 skylark 455

    buick455, Apr 13, 2014
    Replies:
    8
    Views:
    1,584
    65buick
    May 1, 2014
  36. Bad Buick

    Set up bearings?

    Bad Buick, Mar 29, 2011
    Replies:
    8
    Views:
    1,584
    monzaz
    Mar 30, 2011
  37. techg8

    confirm posi ID help?

    techg8, Jan 24, 2011
    Replies:
    11
    Views:
    1,583
    techg8
    Jan 25, 2011
  38. Bluzilla

    3.90 Gears

    Bluzilla, Mar 1, 2009
    Replies:
    11
    Views:
    1,583
    Bluzilla
    Apr 5, 2009
  39. Billy

    Broken 8.5 axle.

    Billy, Mar 13, 2006 ... 2
    Replies:
    25
    Views:
    1,577
    monzaz
    Mar 25, 2006
  40. jescot

    8.5 yoke

    jescot, Mar 21, 2010
    Replies:
    3
    Views:
    1,576
    jescot
    Mar 24, 2010
  41. Chris Chandler

    63 Riviera rear end

    Chris Chandler, Apr 2, 2018
    Replies:
    7
    Views:
    1,575
    monzaz
    Apr 2, 2018
  42. afracer

    Beware of buying new rear wheel bearings seals for 71-72 Skylark 8.5 BOP

    afracer, May 6, 2015
    Replies:
    7
    Views:
    1,570
    rtanner
    May 13, 2015
  43. 65skyturbo

    9 3/8 Buick Posi???

    65skyturbo, Jun 12, 2009
    Replies:
    7
    Views:
    1,569
    65skyturbo
    Jun 19, 2009
  44. 462 Chevelle

    jim you were right lol!

    462 Chevelle, May 12, 2012
    Replies:
    4
    Views:
    1,569
    462 Chevelle
    May 30, 2012
  45. defan238

    8.5 posi rebuild kit????

    defan238, Aug 8, 2010
    Replies:
    2
    Views:
    1,567
    TheSilverBuick
    Aug 8, 2010
  46. 70skylarkcusto

    Heres a real head scratcher...need some help

    70skylarkcusto, Jul 26, 2014
    Replies:
    6
    Views:
    1,567
    70skylarkcusto
    Jul 26, 2014
  47. rack-attack

    What did I break in my rear!!

    rack-attack, Jun 30, 2014
    Replies:
    18
    Views:
    1,567
    TexasJohn55
    Aug 24, 2014
  48. ingramokhll

    78 Trans Am 8.5 posi swap into 65 Skylark

    ingramokhll, Jan 25, 2014
    Replies:
    14
    Views:
    1,566
    LARRY70GS
    Jan 26, 2014
  49. fireredstage1

    Diff Identification help needed. 70 GS Stage 1

    fireredstage1, Sep 6, 2014
    Replies:
    6
    Views:
    1,566
    Mark Demko
    Sep 7, 2014
  50. cstanley-gs

    Need picture of a 10 bolt rear with posi tag

    cstanley-gs, Apr 27, 2007
    Replies:
    3
    Views:
    1,562
    cstanley-gs
    Apr 29, 2007
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