Got gears?

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

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  1. 455 Powered

    76 Riviera rear end

    455 Powered, Jun 4, 2022
    Replies:
    15
    Views:
    665
    455 Powered
    Jun 12, 2022
  2. uwjberg

    New to Me 10 Bolt BOP 8.5" Condition and What to Look For Before Installing

    uwjberg, Jun 11, 2022
    Replies:
    6
    Views:
    627
    BrianTrick
    Jun 12, 2022
  3. srobinr

    Bop 8.2 axle repair question

    srobinr, May 28, 2022 ... 2
    Replies:
    34
    Views:
    1,787
    monzaz
    Jun 11, 2022
  4. SpecialWagon65

    This is a chevy rear, right?

    SpecialWagon65, Jun 7, 2022
    Replies:
    5
    Views:
    367
    monzaz
    Jun 8, 2022
  5. 2manybuicks

    Driveshaft Restoration for 65 Riv GS?

    2manybuicks, Jun 2, 2022
    Replies:
    3
    Views:
    272
    Redmanf1
    Jun 2, 2022
  6. knucklebusted

    Left Rear Locked, Not the Brakes

    knucklebusted, May 28, 2022
    Replies:
    16
    Views:
    741
    monzaz
    Jun 1, 2022
  7. Rich Skylark

    Unusual one time issue with 8.2’ rear

    Rich Skylark, Mar 18, 2022
    Replies:
    13
    Views:
    728
    TrunkMonkey
    May 29, 2022
  8. GS Spoken Here

    Need help IDing posi unit.

    GS Spoken Here, Apr 15, 2022
    Replies:
    18
    Views:
    1,377
    monzaz
    Apr 21, 2022
  9. CraigFaller

    Driveshaft length question - Chevy 12 bolt swap

    CraigFaller, Apr 11, 2022
    Replies:
    9
    Views:
    1,059
    BrunoD
    Apr 13, 2022
  10. Brent

    72 Chevelle 12 bolt value?

    Brent, Feb 13, 2022
    Replies:
    14
    Views:
    2,273
    monzaz
    Apr 11, 2022
  11. Brent

    Reasonably Priced, But Good, 12 Bolt Posi Unit

    Brent, Mar 18, 2022
    Replies:
    16
    Views:
    1,117
    monzaz
    Mar 22, 2022
  12. GSFredsbuddy

    Yoke Torque ?

    GSFredsbuddy, Mar 1, 2022
    Replies:
    11
    Views:
    562
    telriv
    Mar 7, 2022
  13. tubecatgs

    Anyone read and decipher this?

    tubecatgs, Mar 1, 2022
    Replies:
    8
    Views:
    449
    tubecatgs
    Mar 2, 2022
  14. etanner66

    Rear and trans combo

    etanner66, Feb 12, 2021
    Replies:
    19
    Views:
    869
    monzaz
    Mar 2, 2022
  15. ZachGS

    1970 GS TH350 Transmission Original Color

    ZachGS, Mar 1, 2022
    Replies:
    6
    Views:
    514
    CJay
    Mar 2, 2022
  16. Brett Slater

    FabCraft Gearsets

    Brett Slater, Jun 18, 2021 ... 2
    Replies:
    26
    Views:
    1,415
    BrianTrick
    Feb 25, 2022
  17. dirk401425

    What is this. 1966 Buick Electra rear end?

    dirk401425, Feb 21, 2022
    Replies:
    2
    Views:
    324
    monzaz
    Feb 24, 2022
  18. lt1b4c

    GM 12 bolt type 2

    lt1b4c, Feb 21, 2022
    Replies:
    17
    Views:
    549
    BrianTrick
    Feb 23, 2022
  19. 72STAGE1

    What rear in 73-74?

    72STAGE1, Feb 4, 2022
    Replies:
    11
    Views:
    543
    Mark Demko
    Feb 16, 2022
  20. Note 1970

    8.5 posi question

    Note 1970, Jan 15, 2022
    Replies:
    5
    Views:
    591
    BrianTrick
    Jan 19, 2022
  21. steve murray

    Axle bearings

    steve murray, Jan 12, 2022
    Replies:
    2
    Views:
    355
    steve murray
    Jan 13, 2022
  22. gstewart

    700-4R Shifting

    gstewart, Jan 1, 2022
    Replies:
    9
    Views:
    496
    monzaz
    Jan 9, 2022
  23. Chatarina

    Strange Transmission?

    Chatarina, Dec 31, 2021 ... 2 3
    Replies:
    45
    Views:
    1,577
    pbr400
    Jan 7, 2022
  24. Bygblok

    A decent score?

    Bygblok, Nov 22, 2021
    Replies:
    15
    Views:
    905
    monzaz
    Dec 15, 2021
  25. sean Buick 76

    12 bolt vs 8.5

    sean Buick 76, Nov 9, 2021
    Replies:
    10
    Views:
    879
    monzaz
    Dec 3, 2021
  26. breakinbuick11

    BOP or Chevy 10 bolt?

    breakinbuick11, Oct 18, 2021
    Replies:
    18
    Views:
    1,032
    BrianTrick
    Nov 30, 2021
  27. Steve Yager

    Rear end humming in deceleration

    Steve Yager, Nov 21, 2021
    Replies:
    4
    Views:
    441
    monzaz
    Nov 23, 2021
  28. BillA

    Will this seal fit a 12-bolt c-clip rear?

    BillA, Oct 22, 2021
    Replies:
    17
    Views:
    471
    1973gs
    Nov 22, 2021
  29. 455 Powered

    Ring gear and pinion material

    455 Powered, Nov 14, 2021
    Replies:
    9
    Views:
    406
    monzaz
    Nov 17, 2021
  30. job

    Viberations through different drive shaft yoke angle

    job, Oct 31, 2021
    Replies:
    10
    Views:
    430
    TrunkMonkey
    Nov 2, 2021
  31. JN_Skylark

    Strange noises from rear?

    JN_Skylark, Oct 3, 2021
    Replies:
    13
    Views:
    749
    Mark Demko
    Oct 12, 2021
  32. BillA

    Changing wheel studs on Moser axles

    BillA, Oct 6, 2021
    Replies:
    2
    Views:
    416
    john.schaefer77
    Oct 6, 2021
  33. txstratdad

    Lost carrier bearing caps

    txstratdad, Sep 28, 2021
    Replies:
    4
    Views:
    313
    BrianTrick
    Oct 3, 2021
  34. Gary Bohannon

    TrueTrac part numbers?

    Gary Bohannon, Sep 28, 2021
    Replies:
    3
    Views:
    313
    BrianTrick
    Sep 29, 2021
  35. jhems17

    Posi or Not?

    jhems17, Sep 11, 2021
    Replies:
    18
    Views:
    848
    69GS430/TKX
    Sep 28, 2021
  36. V6sleeper

    Rear id 70 Sportwagon

    V6sleeper, Sep 17, 2021 ... 2
    Replies:
    25
    Views:
    1,033
    BrianTrick
    Sep 21, 2021
  37. jeffrro1

    Posi Differential fluid 65 Rivera

    jeffrro1, Sep 14, 2021
    Replies:
    2
    Views:
    280
    LARRY70GS
    Sep 15, 2021
  38. koserv

    67 GS gear

    koserv, Sep 8, 2021 ... 2
    Replies:
    24
    Views:
    922
    koserv
    Sep 13, 2021
  39. Roffy

    1968 Wildcat rear axle blew up, what will fit ?

    Roffy, Aug 25, 2021
    Replies:
    4
    Views:
    348
    436'd Skylark
    Aug 25, 2021
  40. Steve Yager

    Kick down switch th400

    Steve Yager, Aug 16, 2021
    Replies:
    13
    Views:
    619
    Steve Yager
    Aug 18, 2021
  41. MarcoD

    66 Wildcat - 9-3/8" rear end

    MarcoD, Jan 1, 2018 ... 2 3
    Replies:
    41
    Views:
    6,885
    Wild_Cat
    Aug 17, 2021
  42. FLGS400

    1969 GS400 Drive Shaft Question

    FLGS400, Aug 12, 2021
    Replies:
    13
    Views:
    495
    taf44667
    Aug 13, 2021
  43. BrianTrick

    Here you go Andrew

    BrianTrick, Aug 1, 2021
    Replies:
    8
    Views:
    488
    TheEternalDance
    Aug 13, 2021
  44. Ken Mild

    69 GS 12 bolt - Finally getting posi installed

    Ken Mild, Aug 10, 2021
    Replies:
    15
    Views:
    543
    monzaz
    Aug 13, 2021
  45. NoVA_69_GS350

    Any idea?

    NoVA_69_GS350, Aug 8, 2021
    Replies:
    8
    Views:
    388
    monzaz
    Aug 12, 2021
  46. 68ElectraCustom

    Plz help decode my 9 3/8 axle

    68ElectraCustom, Apr 22, 2021
    Replies:
    14
    Views:
    707
    monzaz
    Aug 10, 2021
  47. idahoskylark

    3.90 finally

    idahoskylark, Aug 3, 2021
    Replies:
    9
    Views:
    550
    idahoskylark
    Aug 8, 2021
  48. gsgns4me

    Looking For A Good, Hard Stud!

    gsgns4me, Jul 19, 2021
    Replies:
    16
    Views:
    662
    monzaz
    Aug 1, 2021
  49. kack

    Jaguar rear Axle

    kack, Jul 30, 2021
    Replies:
    3
    Views:
    312
    12lives
    Jul 31, 2021
  50. LouV

    Pinion Yoke Question

    LouV, May 7, 2021 ... 2
    Replies:
    26
    Views:
    1,410
    BrianTrick
    Jul 29, 2021
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