Got gears?

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

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  1. Cheep Buick

    79 Malibu Posi

    Cheep Buick, Mar 6, 2006
    Replies:
    3
    Views:
    1,561
    paul c
    Mar 6, 2006
  2. 65skyHT

    Powertrax no-slip

    65skyHT, Aug 23, 2010
    Replies:
    5
    Views:
    1,560
    65skyHT
    Aug 25, 2010
  3. MDBuick68

    Is this rear a better choice for me? Price?

    MDBuick68, Apr 17, 2014 ... 2
    Replies:
    20
    Views:
    1,554
    MDBuick68
    Apr 24, 2014
  4. 72GSX

    I found a problem in my 12 bolt........

    72GSX, Oct 30, 2004 ... 2
    Replies:
    20
    Views:
    1,553
    72GSX
    Dec 22, 2004
  5. LDPosse

    '71 10 Bolt rear backlash

    LDPosse, Dec 18, 2010
    Replies:
    4
    Views:
    1,551
    monzaz
    Dec 19, 2010
  6. GS Spoken Here

    8.2 Buick rear end cover gasket

    GS Spoken Here, Sep 1, 2011
    Replies:
    4
    Views:
    1,550
    DavidC77
    Sep 8, 2011
  7. 1970BUICK

    Short versus long tail/drive shaft?

    1970BUICK, Mar 13, 2005
    Replies:
    10
    Views:
    1,550
    TF204
    Apr 13, 2005
  8. ap1672

    72 gs350 8.5 rear end ratio's

    ap1672, Jan 30, 2008
    Replies:
    7
    Views:
    1,544
    ap1672
    Feb 1, 2008
  9. Nothingface5384

    3.08s and 200r4

    Nothingface5384, Oct 2, 2009
    Replies:
    15
    Views:
    1,544
    Nothingface5384
    Oct 6, 2009
  10. Michael O

    Rear Axle Help - 68 Riviera

    Michael O, Apr 8, 2015
    Replies:
    8
    Views:
    1,543
    Michael O
    Apr 12, 2015
  11. BuickRacer69

    Chevy 12 bolt with 9 inch ends

    BuickRacer69, Dec 3, 2018
    Replies:
    14
    Views:
    1,542
    monzaz
    Dec 6, 2018
  12. Chatarina

    Strange Transmission?

    Chatarina, Dec 31, 2021 ... 2 3
    Replies:
    45
    Views:
    1,542
    pbr400
    Jan 7, 2022
  13. mikebart101

    Posi Identification

    mikebart101, Apr 24, 2009
    Replies:
    4
    Views:
    1,541
    mikebart101
    Apr 28, 2009
  14. chrome yellow

    End play

    chrome yellow, Jan 10, 2011
    Replies:
    9
    Views:
    1,539
    monzaz
    Jan 13, 2011
  15. VET

    2.93 posi in a 8.2 diff?

    VET, Oct 6, 2023 ... 2 3
    Replies:
    40
    Views:
    1,535
    VET
    Oct 12, 2023
  16. 1967BuickGS400

    2.73 to 3.42?

    1967BuickGS400, Apr 1, 2012
    Replies:
    8
    Views:
    1,532
    1967BuickGS400
    Apr 7, 2012
  17. DFMCQUICK

    10 Bolt 8.5 to a 12 Bolt Question

    DFMCQUICK, Oct 24, 2012
    Replies:
    16
    Views:
    1,531
    larryh
    Dec 5, 2012
  18. msc66

    u-joint source

    msc66, Aug 21, 2007
    Replies:
    8
    Views:
    1,527
    msc66
    Aug 25, 2007
  19. lsSkylark

    8.5 rear end build for 550 hp

    lsSkylark, Sep 20, 2020 ... 2
    Replies:
    20
    Views:
    1,526
    DasRottweiler
    Oct 8, 2020
  20. ToddsGS

    How much H.P. can the 8.2 Handle ?????

    ToddsGS, Jan 18, 2021
    Replies:
    8
    Views:
    1,525
    ToddsGS
    Jan 19, 2021
  21. Torque2

    Can you ID this 12 bolt from a '71 Skylark?

    Torque2, Jul 27, 2005 ... 2
    Replies:
    21
    Views:
    1,523
    Kelly Eber
    Aug 1, 2005
  22. jmos4

    Blown posi 8.2 ?

    jmos4, Aug 13, 2016
    Replies:
    13
    Views:
    1,522
    monzaz
    Aug 18, 2016
  23. racenu

    12 bolt swap

    racenu, Jan 3, 2007
    Replies:
    10
    Views:
    1,521
    Sportwagon400
    Jan 10, 2007
  24. dschwarze

    Looking for 64 Wildcat 3.23 Posi

    dschwarze, Mar 30, 2007
    Replies:
    13
    Views:
    1,519
    dschwarze
    Apr 15, 2007
  25. GRETCHEN1

    9 and 3/8 0r pontiac full size .....

    GRETCHEN1, Oct 30, 2013
    Replies:
    9
    Views:
    1,510
    LARRY70GS
    Nov 9, 2013
  26. Atbb

    No power gains?

    Atbb, Jul 23, 2010
    Replies:
    17
    Views:
    1,508
    Gary Bohannon
    Aug 16, 2010
  27. Floydsbuick

    Rear end noise? 9 3/8 Posi

    Floydsbuick, May 12, 2007
    Replies:
    6
    Views:
    1,508
    LARRY70GS
    May 14, 2007
  28. WV-MADMAN

    which sucks more in a 7.5, posi or gov/lock

    WV-MADMAN, Jun 7, 2010
    Replies:
    3
    Views:
    1,505
    monzaz
    Jun 8, 2010
  29. Rikzred68

    8.5 posi springs

    Rikzred68, Feb 16, 2008
    Replies:
    3
    Views:
    1,504
    monzaz
    Feb 21, 2008
  30. Lory's 350

    Rearend identification

    Lory's 350, Mar 31, 2020 ... 2
    Replies:
    25
    Views:
    1,501
    monzaz
    Apr 10, 2020
  31. Buickcub

    8.5 10 bolt suggestions

    Buickcub, Jan 12, 2021 ... 2
    Replies:
    28
    Views:
    1,500
    monzaz
    Jun 21, 2021
  32. hgiljr

    Gears to go with

    hgiljr, Sep 9, 2019 ... 2
    Replies:
    29
    Views:
    1,498
    Gary Bohannon
    Dec 11, 2019
  33. vonroo

    65 riviera gs looking for 3.42 posi rearend

    vonroo, Aug 3, 2006
    Replies:
    6
    Views:
    1,498
    vonroo
    Aug 4, 2006
  34. tjcole

    need part# for axle bearing kit for '71 8.5" rear

    tjcole, Jul 11, 2006
    Replies:
    6
    Views:
    1,497
    iacovoni
    Jul 19, 2006
  35. Double "D"

    66 Chevelle rearend

    Double "D", Apr 5, 2011
    Replies:
    7
    Views:
    1,495
    BillA
    Apr 7, 2011
  36. 70Custom

    What rear end?

    70Custom, Nov 11, 2008
    Replies:
    17
    Views:
    1,493
    70Custom
    Dec 12, 2008
  37. racerxjj67

    Help me decide on gear ratio for 350

    racerxjj67, Nov 13, 2006
    Replies:
    9
    Views:
    1,492
    monzaz
    Nov 14, 2006
  38. klcourter

    1970 4:33 ring and pinion numbers

    klcourter, Jul 5, 2012
    Replies:
    6
    Views:
    1,491
    monzaz
    Jul 6, 2012
  39. Narangelo

    8.2 Rear end dilemma

    Narangelo, Mar 30, 2014
    Replies:
    8
    Views:
    1,490
    monzaz
    Apr 1, 2014
  40. Christopher Spouse Drew

    8.5 10 Bolt Rear End Questions

    Christopher Spouse Drew, Jun 26, 2018 ... 2
    Replies:
    29
    Views:
    1,490
    TexasT
    Jun 29, 2018
  41. Eric B

    Bad Vibration - looking for help with possible driveline issue

    Eric B, Jun 7, 2013
    Replies:
    7
    Views:
    1,488
    Eric B
    Jul 18, 2014
  42. gsfred

    1973 Riviera 3:55 Posi Value

    gsfred, Nov 10, 2012
    Replies:
    8
    Views:
    1,486
    monzaz
    Nov 12, 2012
  43. section8mainiac

    8.5 Spacer Washers

    section8mainiac, Dec 22, 2010
    Replies:
    7
    Views:
    1,486
    LARRY70GS
    Dec 31, 2010
  44. Idaho67gs400

    12 bolt swap in 67 GS 400

    Idaho67gs400, Jan 8, 2012
    Replies:
    10
    Views:
    1,484
    wkillgs
    Jan 10, 2012
  45. racenu

    posi identification

    racenu, Sep 10, 2010
    Replies:
    5
    Views:
    1,484
    GStage1
    Sep 13, 2010
  46. RocketWagon

    A-Body to B-Body Diff Swap?

    RocketWagon, Mar 13, 2011
    Replies:
    2
    Views:
    1,478
    RocketWagon
    Mar 14, 2011
  47. Tom Miller

    12 bolt posi 3 series carrier with 33 spline side gears

    Tom Miller, Sep 27, 2015
    Replies:
    12
    Views:
    1,477
    Tom Miller
    Oct 3, 2015
  48. waterwolf

    Differential ID: 1971 Electra 225 455 engine.

    waterwolf, Jul 25, 2012
    Replies:
    6
    Views:
    1,477
    SportWagonGS
    Jul 26, 2012
  49. citro

    72 Riviera non-posi interchangeability

    citro, Jun 24, 2012
    Replies:
    10
    Views:
    1,474
    monzaz
    Sep 8, 2012
  50. canitguy

    Rear Axle Won't Insert Fully

    canitguy, Aug 27, 2013
    Replies:
    7
    Views:
    1,473
    monzaz
    Sep 1, 2013
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