Got gears?

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

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  1. Christopher Spouse Drew

    Identifying a 10 bolt 8.5 posi

    Christopher Spouse Drew, Dec 4, 2018 ... 2
    Replies:
    33
    Views:
    2,888
    monzaz
    Dec 16, 2018
  2. Bad '69

    Rear End Help

    Bad '69, Jul 14, 2008
    Replies:
    11
    Views:
    2,888
    Bad '69
    Jul 18, 2008
  3. CarolinaDrifter

    Upper control arm bushings???

    CarolinaDrifter, Sep 14, 2010
    Replies:
    19
    Views:
    2,873
    James P
    Sep 17, 2010
  4. Tom Miller

    Early Olds rear, and early Buick rear....do parts interchange? Monzaz??

    Tom Miller, Nov 4, 2012
    Replies:
    9
    Views:
    2,862
    buford27
    Nov 7, 2012
  5. Donovan91

    28 spline to 30 spline????

    Donovan91, Oct 8, 2011
    Replies:
    15
    Views:
    2,860
    monzaz
    Oct 10, 2011
  6. twolfinger

    8.5 vs 8.2?

    twolfinger, Aug 4, 2008
    Replies:
    16
    Views:
    2,855
    DaWildcat
    Aug 5, 2008
  7. monzaz

    Rear end GUY has a AXLE BEARING AND SEAL question!!!! HELP!

    monzaz, Apr 30, 2020 ... 2
    Replies:
    37
    Views:
    2,849
    BrianTrick
    Mar 2, 2024
  8. R4E5G5L

    500 miles for break in?

    R4E5G5L, Jul 3, 2011
    Replies:
    10
    Views:
    2,822
    19Skylark68 455
    Jul 9, 2011
  9. eagleguy

    1971 8.5, 10 bolt rear diff cover queation

    eagleguy, Jan 22, 2010
    Replies:
    9
    Views:
    2,814
    eagleguy
    Jan 31, 2010
  10. tball

    direct swap for 2-series 71 Skylark 8.5" 10 bolt?

    tball, Jun 8, 2018 ... 2 3
    Replies:
    43
    Views:
    2,803
    LARRY70GS
    Jan 20, 2019
  11. chrisc1541

    wub wub wub sound any ideas?

    chrisc1541, Dec 9, 2010 ... 2
    Replies:
    20
    Views:
    2,795
    Dr Goggles
    May 15, 2011
  12. BIGJOE

    Ford 9" rear end

    BIGJOE, Mar 29, 2011
    Replies:
    12
    Views:
    2,793
    bammax
    Apr 11, 2011
  13. eljefe98

    1968 Buick Skylark Custom - Rearend question

    eljefe98, Feb 19, 2007
    Replies:
    12
    Views:
    2,791
    eljefe98
    Feb 21, 2007
  14. agetnt9

    Auburn, Eaton, truetrac opinions

    agetnt9, Feb 26, 2014 ... 2
    Replies:
    20
    Views:
    2,784
    wunquik86'
    Mar 6, 2014
  15. CameoInvicta

    Driveshaft shop in Tampa/Sarasota

    CameoInvicta, Oct 19, 2010
    Replies:
    3
    Views:
    2,778
    CameoInvicta
    Oct 22, 2010
  16. pooods

    Olds Type O rear end???'s

    pooods, Mar 16, 2011
    Replies:
    5
    Views:
    2,777
    monzaz
    Mar 20, 2011
  17. chrisc1541

    will a 10 bolt rearend out of a 64 nova fit a 68 buick skylark

    chrisc1541, Sep 29, 2010
    Replies:
    10
    Views:
    2,776
    GStage1
    Oct 13, 2010
  18. gscalifornia

    3.73 or 3.90 is there a big difference

    gscalifornia, Jun 5, 2020 ... 2
    Replies:
    37
    Views:
    2,774
    LARRY70GS
    Jun 18, 2020
  19. Ryans-GSX

    Gear Ratio / Tire Size

    Ryans-GSX, Dec 31, 2006
    Replies:
    19
    Views:
    2,757
    faster
    Jan 6, 2007
  20. Buickless

    Third gem camaro diff

    Buickless, Dec 9, 2009
    Replies:
    1
    Views:
    2,755
    RACEBUICKS
    Dec 9, 2009
  21. speedtigger

    How Fast Until After Market Axles Are Needed?

    speedtigger, Jul 1, 2010
    Replies:
    16
    Views:
    2,748
    speedtigger
    Dec 6, 2011
  22. cellblock_g

    1985 Buick Le Sabre rear axle ratio

    cellblock_g, Aug 11, 2010
    Replies:
    8
    Views:
    2,744
    cellblock_g
    Sep 12, 2010
  23. Tom Miller

    Carrier bearing cap question (when replacing with aftermarket)

    Tom Miller, Feb 12, 2017
    Replies:
    7
    Views:
    2,730
    BrianTrick
    Feb 13, 2017
  24. marcflag

    What are the better gears on a 6 speed

    marcflag, May 29, 2009
    Replies:
    18
    Views:
    2,728
    online170
    Jul 25, 2009
  25. kick71

    New 3.73 and rear setup in

    kick71, Sep 27, 2008 ... 2
    Replies:
    34
    Views:
    2,727
    kick71
    Nov 2, 2008
  26. jay3000

    Is Richmond # 49-0041-1 correct for a 71 Skylark 8.5??

    jay3000, Dec 1, 2009
    Replies:
    12
    Views:
    2,718
    Freakazoid
    Dec 6, 2009
  27. Troys69GS

    Everything you wanted to know about diffs

    Troys69GS, Mar 15, 2008 ... 2
    Replies:
    29
    Views:
    2,714
    nekkidhillbilly
    Apr 23, 2008
  28. 1967BuickGS400

    3.73 vs 3.42 at track?

    1967BuickGS400, Oct 6, 2011
    Replies:
    14
    Views:
    2,698
    462 Chevelle
    Oct 8, 2011
  29. Roadmaster49

    Centurion Posi options

    Roadmaster49, Nov 27, 2010
    Replies:
    11
    Views:
    2,688
    monzaz
    Nov 28, 2010
  30. 350sky

    HELP! How remove Axles

    350sky, Apr 14, 2012 ... 2
    Replies:
    26
    Views:
    2,687
    monzaz
    Apr 17, 2012
  31. jamyers

    How to Rebuild a GM S-spring posi carrier?

    jamyers, Oct 25, 2005
    Replies:
    9
    Views:
    2,680
    GStage1
    Nov 23, 2005
  32. idahoskylark

    12 bolt id help

    idahoskylark, Feb 26, 2011
    Replies:
    8
    Views:
    2,677
    idahoskylark
    Feb 27, 2011
  33. PaulGS

    Rear End Rebuilders - Mass.

    PaulGS, Dec 27, 2007
    Replies:
    11
    Views:
    2,667
    steve murray
    Jan 3, 2008
  34. tsipi

    Options for 1969 riviera gears / rear end

    tsipi, May 28, 2016
    Replies:
    14
    Views:
    2,661
    tsipi
    Jun 9, 2016
  35. rh455

    Rear axle opinions

    rh455, Oct 24, 2005 ... 2
    Replies:
    28
    Views:
    2,654
    sbbuick
    Oct 28, 2005
  36. 71PostCoupe

    12 Bolt Identification. HELP!!!!!!!

    71PostCoupe, Jan 19, 2007
    Replies:
    7
    Views:
    2,652
    copper128
    Jan 19, 2007
  37. gsx678

    What U-Joint do I need?

    gsx678, Sep 15, 2008
    Replies:
    7
    Views:
    2,648
    speed70
    Oct 6, 2008
  38. eagleguy

    Switching gear ratio / going to posi?

    eagleguy, Jan 18, 2010 ... 2
    Replies:
    22
    Views:
    2,647
    eagleguy
    Jan 23, 2010
  39. 71Skylark1384

    Got a Gear dilemma.

    71Skylark1384, Jan 28, 2016 ... 2
    Replies:
    24
    Views:
    2,638
    LARRY70GS
    Jan 31, 2016
  40. 73 Stage-1

    Challenging Driveshaft Removal

    73 Stage-1, Dec 5, 2022 ... 2 3 4
    Replies:
    63
    Views:
    2,635
    73 Stage-1
    Mar 6, 2023
  41. cstanley-gs

    GM 10 bolt 8.5 gear - BOP and chevy all the same?

    cstanley-gs, Jun 24, 2008
    Replies:
    4
    Views:
    2,624
    cstanley-gs
    Jun 25, 2008
  42. xhp734

    '65 Skylark Rear Differential

    xhp734, Mar 5, 2016
    Replies:
    7
    Views:
    2,621
    monzaz
    Sep 15, 2016
  43. josehf34

    some help changing gears on a 8.2

    josehf34, Oct 28, 2018 ... 2 3
    Replies:
    42
    Views:
    2,608
    josehf34
    Dec 3, 2018
  44. R4E5G5L

    slip yoke th400

    R4E5G5L, Jun 16, 2011
    Replies:
    7
    Views:
    2,600
    R4E5G5L
    Jul 3, 2011
  45. ray0123

    1970 Buick Skylark Custom Gear Ratio

    ray0123, Feb 19, 2005
    Replies:
    8
    Views:
    2,596
    ray0123
    Feb 22, 2005
  46. Bygblok

    Chevy to BOP differences. thought ANYTHING could be as bad as my mopar

    Bygblok, Feb 4, 2017
    Replies:
    12
    Views:
    2,595
    Bygblok
    Feb 8, 2017
  47. Nailhead

    3.42 Ring and Pinion Set--Used On???

    Nailhead, Dec 21, 2006
    Replies:
    8
    Views:
    2,587
    monzaz
    Jul 20, 2007
  48. gearhead-42

    64 wildcat rear end help

    gearhead-42, Aug 10, 2015
    Replies:
    13
    Views:
    2,583
    SpecialWagon65
    Jul 7, 2021
  49. Roadmaster49

    1966 GS Posi Options

    Roadmaster49, Feb 2, 2010
    Replies:
    14
    Views:
    2,580
    monzaz
    Feb 5, 2010
  50. frydfsh

    rear axle widths?

    frydfsh, Jul 31, 2005
    Replies:
    1
    Views:
    2,579
    oPh
    Aug 1, 2005
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