Got gears?

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

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  1. BrianTrick

    Moser 12-bolt build

    BrianTrick, Apr 22, 2023
    Replies:
    5
    Views:
    806
    BrianTrick
    Apr 24, 2023
  2. BrianTrick

    71-72 8.5” 10-bolt 3:55 Builc

    BrianTrick, Apr 6, 2023
    Replies:
    9
    Views:
    941
    BrianTrick
    Apr 8, 2023
  3. STREETFIGHTER50

    1968-1972 Rear axle widths

    STREETFIGHTER50, Mar 22, 2023
    Replies:
    6
    Views:
    374
    BrianTrick
    Mar 24, 2023
  4. 73 Stage-1

    Challenging Driveshaft Removal

    73 Stage-1, Dec 5, 2022 ... 2 3 4
    Replies:
    63
    Views:
    2,640
    73 Stage-1
    Mar 6, 2023
  5. uwjberg

    Help with Rear End ID

    uwjberg, Jun 10, 2022 ... 2
    Replies:
    31
    Views:
    933
    Max Damage
    Mar 1, 2023
  6. rkammer

    Driveshaft for Turbo 400 to '71-'72 GM 8.5 rear axle

    rkammer, Feb 18, 2023
    Replies:
    9
    Views:
    356
    BrianTrick
    Feb 18, 2023
  7. rkammer

    Do I really need new axles?

    rkammer, Feb 13, 2023 ... 2
    Replies:
    25
    Views:
    1,079
    rkammer
    Feb 14, 2023
  8. xtreme6mwm

    BENT HOUSING

    xtreme6mwm, Feb 9, 2023
    Replies:
    8
    Views:
    354
    1973gs
    Feb 11, 2023
  9. buickmanmarty

    3.91 vs 2.93

    buickmanmarty, Feb 3, 2023 ... 2
    Replies:
    32
    Views:
    1,267
    bobc455
    Feb 9, 2023
  10. BQUICK

    Gov-lock

    BQUICK, Aug 30, 2022 ... 2
    Replies:
    23
    Views:
    970
    Bens99gtp
    Jan 31, 2023
  11. rkammer

    Change 8.5 rear end ratio from 3.42 to 3.73 or 3.91

    rkammer, Jan 26, 2023 ... 2
    Replies:
    29
    Views:
    972
    rkammer
    Jan 28, 2023
  12. Brent

    12 Bolt Pinion Seal Question

    Brent, Jan 20, 2023
    Replies:
    3
    Views:
    320
    Brent
    Jan 20, 2023
  13. Nesmith

    TH 350 problems

    Nesmith, Dec 16, 2022
    Replies:
    4
    Views:
    261
    Nesmith
    Jan 15, 2023
  14. Brent

    72 Pontiac Lemans Rear Axle?

    Brent, Jan 4, 2023
    Replies:
    12
    Views:
    797
    BrianTrick
    Jan 10, 2023
  15. V6sleeper

    Buick 8.5 rear

    V6sleeper, Jan 5, 2023
    Replies:
    13
    Views:
    529
    sean Buick 76
    Jan 7, 2023
  16. Nick 66 Skylark

    WTB posi rear end

    Nick 66 Skylark, Dec 23, 2022 ... 2
    Replies:
    30
    Views:
    970
    monzaz
    Dec 29, 2022
  17. Mach5racing

    8.2 rear gears

    Mach5racing, Sep 13, 2022
    Replies:
    16
    Views:
    818
    Nick 66 Skylark
    Dec 23, 2022
  18. CJay

    U joints- nothing is ever easy

    CJay, Jan 9, 2022 ... 2 3
    Replies:
    40
    Views:
    2,342
    Deogi2
    Dec 11, 2022
  19. 71gs3504sp

    GM 8.5 Posi question

    71gs3504sp, Dec 2, 2022
    Replies:
    5
    Views:
    337
    71gs3504sp
    Dec 3, 2022
  20. George D.

    Column shift tilt rebuild- help….

    George D., Nov 25, 2022
    Replies:
    5
    Views:
    267
    CJay
    Nov 27, 2022
  21. tubecatgs

    Steering column disassembly

    tubecatgs, Nov 19, 2022
    Replies:
    12
    Views:
    341
    BrianTrick
    Nov 22, 2022
  22. berigan

    1976 Electra U-joints went out fairly quickly. Is there brands I should avoid?

    berigan, Oct 22, 2022
    Replies:
    10
    Views:
    441
    Mark Demko
    Nov 11, 2022
  23. 455 Powered

    Rear end id

    455 Powered, Oct 3, 2022
    Replies:
    4
    Views:
    290
    BrianTrick
    Oct 4, 2022
  24. César Machicao

    8.2 or 8.5 BOP? 1970 Skylark 350 from Peru

    César Machicao, Sep 18, 2022
    Replies:
    19
    Views:
    764
    César Machicao
    Sep 20, 2022
  25. dered54

    Differential Identification

    dered54, Aug 26, 2022
    Replies:
    3
    Views:
    347
    Tomahawk
    Sep 10, 2022
  26. B73NC

    torque spec questions

    B73NC, Sep 9, 2022
    Replies:
    2
    Views:
    171
    Nailhead in a 1967
    Sep 9, 2022
  27. Super Bald Menace

    Swapping carriers. 8.2 bop

    Super Bald Menace, Sep 6, 2022
    Replies:
    9
    Views:
    367
    monzaz
    Sep 7, 2022
  28. 70skylark350

    Need help with 8.2 bolt in axle reoccurring axle seal leaks.

    70skylark350, Aug 20, 2022
    Replies:
    11
    Views:
    735
    john.schaefer77
    Sep 4, 2022
  29. Tomahawk

    Removing & Replacing Carrier: Step-by-Step Video

    Tomahawk, Aug 23, 2022
    Replies:
    6
    Views:
    428
    monzaz
    Aug 28, 2022
  30. Utah455

    70 Buick GS 455 - 12 Bolt recommendation - Change from one legger to posi

    Utah455, Aug 12, 2022
    Replies:
    6
    Views:
    479
    Utah455
    Aug 24, 2022
  31. Nearing

    70 GS 3:64 posi - Differential lube recommendation

    Nearing, Jul 29, 2022
    Replies:
    19
    Views:
    727
    monzaz
    Aug 1, 2022
  32. desordi

    Rear Wheel Bearings & Seals: Part #? (1970 GS; 3.64)

    desordi, Jul 26, 2022
    Replies:
    2
    Views:
    292
    desordi
    Jul 26, 2022
  33. bignastyGS

    Big tire guys what gear ratio are you running?

    bignastyGS, Jan 14, 2021 ... 2
    Replies:
    22
    Views:
    1,683
    sean Buick 76
    Jul 25, 2022
  34. 70skylark350

    Question on 8.2 taper axle bearing retention.

    70skylark350, Jul 16, 2022
    Replies:
    5
    Views:
    418
    BrianTrick
    Jul 17, 2022
  35. kack

    Rear Axle Pinion.

    kack, Jul 15, 2022
    Replies:
    9
    Views:
    277
    monzaz
    Jul 16, 2022
  36. john.schaefer77

    1968 GS400

    john.schaefer77, Jun 29, 2022
    Replies:
    15
    Views:
    672
    monzaz
    Jul 5, 2022
  37. Bob Lorenz Jr.

    Rear axle ID

    Bob Lorenz Jr., Jul 1, 2022
    Replies:
    3
    Views:
    325
    BrianTrick
    Jul 2, 2022
  38. 68 Skylark cust

    Diff Gear change 3.08 to ??

    68 Skylark cust, Jun 23, 2021 ... 2 3 4
    Replies:
    62
    Views:
    2,935
    Fox's Den
    Jun 18, 2022
  39. 455 Powered

    76 Riviera rear end

    455 Powered, Jun 4, 2022
    Replies:
    15
    Views:
    585
    455 Powered
    Jun 12, 2022
  40. uwjberg

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

    uwjberg, Jun 11, 2022
    Replies:
    6
    Views:
    560
    BrianTrick
    Jun 12, 2022
  41. srobinr

    Bop 8.2 axle repair question

    srobinr, May 28, 2022 ... 2
    Replies:
    34
    Views:
    1,636
    monzaz
    Jun 11, 2022
  42. SpecialWagon65

    This is a chevy rear, right?

    SpecialWagon65, Jun 7, 2022
    Replies:
    5
    Views:
    349
    monzaz
    Jun 8, 2022
  43. 2manybuicks

    Driveshaft Restoration for 65 Riv GS?

    2manybuicks, Jun 2, 2022
    Replies:
    3
    Views:
    258
    Redmanf1
    Jun 2, 2022
  44. knucklebusted

    Left Rear Locked, Not the Brakes

    knucklebusted, May 28, 2022
    Replies:
    16
    Views:
    629
    monzaz
    Jun 1, 2022
  45. Rich Skylark

    Unusual one time issue with 8.2’ rear

    Rich Skylark, Mar 18, 2022
    Replies:
    13
    Views:
    675
    TrunkMonkey
    May 29, 2022
  46. GS Spoken Here

    Need help IDing posi unit.

    GS Spoken Here, Apr 15, 2022
    Replies:
    18
    Views:
    1,277
    monzaz
    Apr 21, 2022
  47. CraigFaller

    Driveshaft length question - Chevy 12 bolt swap

    CraigFaller, Apr 11, 2022
    Replies:
    9
    Views:
    1,009
    BrunoD
    Apr 13, 2022
  48. Brent

    72 Chevelle 12 bolt value?

    Brent, Feb 13, 2022
    Replies:
    14
    Views:
    2,048
    monzaz
    Apr 11, 2022
  49. Brent

    Reasonably Priced, But Good, 12 Bolt Posi Unit

    Brent, Mar 18, 2022
    Replies:
    16
    Views:
    979
    monzaz
    Mar 22, 2022
  50. GSFredsbuddy

    Yoke Torque ?

    GSFredsbuddy, Mar 1, 2022
    Replies:
    11
    Views:
    542
    telriv
    Mar 7, 2022
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