Got gears?

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

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  1. BillA

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

    BillA, Oct 22, 2021 at 1:37 PM
    Replies:
    4
    Views:
    58
    BrianTrick
    Oct 23, 2021 at 7:00 PM
  2. breakinbuick11

    BOP or Chevy 10 bolt?

    breakinbuick11, Oct 18, 2021 at 8:12 AM
    Replies:
    8
    Views:
    153
    BrianTrick
    Oct 19, 2021 at 8:04 AM
  3. JN_Skylark

    Strange noises from rear?

    JN_Skylark, Oct 3, 2021
    Replies:
    18
    Views:
    378
    Mark Demko
    Oct 12, 2021
  4. BillA

    Changing wheel studs on Moser axles

    BillA, Oct 6, 2021
    Replies:
    2
    Views:
    84
    john.schaefer77
    Oct 6, 2021
  5. txstratdad

    Lost carrier bearing caps

    txstratdad, Sep 28, 2021
    Replies:
    4
    Views:
    146
    BrianTrick
    Oct 3, 2021
  6. Gary Bohannon

    TrueTrac part numbers?

    Gary Bohannon, Sep 28, 2021
    Replies:
    3
    Views:
    109
    BrianTrick
    Sep 29, 2021
  7. jhems17

    Posi or Not?

    jhems17, Sep 11, 2021
    Replies:
    18
    Views:
    473
    69GS430/TKX
    Sep 28, 2021
  8. V6sleeper

    Rear id 70 Sportwagon

    V6sleeper, Sep 17, 2021 ... 2
    Replies:
    25
    Views:
    300
    BrianTrick
    Sep 21, 2021
  9. jeffrro1

    Posi Differential fluid 65 Rivera

    jeffrro1, Sep 14, 2021
    Replies:
    2
    Views:
    69
    LARRY70GS
    Sep 15, 2021
  10. koserv

    67 GS gear

    koserv, Sep 8, 2021 ... 2
    Replies:
    24
    Views:
    389
    koserv
    Sep 13, 2021
  11. 68 Skylark cust

    Diff Gear change 3.08 to ??

    68 Skylark cust, Jun 23, 2021 ... 2
    Replies:
    35
    Views:
    995
    68 Skylark cust
    Aug 27, 2021
  12. Roffy

    1968 Wildcat rear axle blew up, what will fit ?

    Roffy, Aug 25, 2021
    Replies:
    4
    Views:
    129
    436'd Skylark
    Aug 25, 2021
  13. Steve Yager

    Kick down switch th400

    Steve Yager, Aug 16, 2021
    Replies:
    13
    Views:
    218
    Steve Yager
    Aug 18, 2021
  14. MarcoD

    66 Wildcat - 9-3/8" rear end

    MarcoD, Jan 1, 2018 ... 2 3
    Replies:
    41
    Views:
    4,513
    Wild_Cat
    Aug 17, 2021
  15. FLGS400

    1969 GS400 Drive Shaft Question

    FLGS400, Aug 12, 2021
    Replies:
    13
    Views:
    194
    taf44667
    Aug 13, 2021
  16. BrianTrick

    Here you go Andrew

    BrianTrick, Aug 1, 2021
    Replies:
    8
    Views:
    323
    TheEternalDance
    Aug 13, 2021
  17. Ken Mild

    69 GS 12 bolt - Finally getting posi installed

    Ken Mild, Aug 10, 2021
    Replies:
    15
    Views:
    260
    monzaz
    Aug 13, 2021
  18. NoVA_69_GS350

    Any idea?

    NoVA_69_GS350, Aug 8, 2021
    Replies:
    8
    Views:
    223
    monzaz
    Aug 12, 2021
  19. 68ElectraCustom

    Plz help decode my 9 3/8 axle

    68ElectraCustom, Apr 22, 2021
    Replies:
    14
    Views:
    532
    monzaz
    Aug 10, 2021
  20. idahoskylark

    3.90 finally

    idahoskylark, Aug 3, 2021
    Replies:
    9
    Views:
    325
    idahoskylark
    Aug 8, 2021
  21. Brett Slater

    FabCraft Gearsets

    Brett Slater, Jun 18, 2021
    Replies:
    18
    Views:
    482
    monzaz
    Aug 3, 2021
  22. gsgns4me

    Looking For A Good, Hard Stud!

    gsgns4me, Jul 19, 2021
    Replies:
    16
    Views:
    353
    monzaz
    Aug 1, 2021
  23. kack

    Jaguar rear Axle

    kack, Jul 30, 2021
    Replies:
    3
    Views:
    141
    12lives
    Jul 31, 2021
  24. LouV

    Pinion Yoke Question

    LouV, May 7, 2021 ... 2
    Replies:
    26
    Views:
    599
    BrianTrick
    Jul 29, 2021
  25. etanner66

    Rear and trans combo

    etanner66, Feb 12, 2021
    Replies:
    17
    Views:
    417
    LARRY70GS
    Jul 27, 2021
  26. 70/71GS

    1968 8.2 Axle Bearing Replacement

    70/71GS, Jul 12, 2021
    Replies:
    6
    Views:
    262
    monzaz
    Jul 16, 2021
  27. Towley

    1970

    Towley, Mar 11, 2021
    Replies:
    10
    Views:
    457
    monzaz
    Jul 12, 2021
  28. jmccart

    8.5 10 bolts, 71 & later Buick & Olds, Pontiac too?

    jmccart, Aug 19, 2009 ... 2
    Replies:
    33
    Views:
    14,737
    Bens99gtp
    Jul 7, 2021
  29. gearhead-42

    64 wildcat rear end help

    gearhead-42, Aug 10, 2015
    Replies:
    13
    Views:
    1,816
    SpecialWagon65
    Jul 7, 2021
  30. 70staged

    Ta girdle

    70staged, Apr 21, 2021
    Replies:
    8
    Views:
    476
    BrianTrick
    Jul 5, 2021
  31. monzaz

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

    monzaz, Apr 30, 2020 ... 2
    Replies:
    35
    Views:
    1,755
    Max Damage
    Jul 5, 2021
  32. 1969RIVI

    69 Riv drive shaft parts

    1969RIVI, May 3, 2021 ... 2
    Replies:
    34
    Views:
    576
    Briz
    Jul 4, 2021
  33. GSFredsbuddy

    65-66 rear ends

    GSFredsbuddy, Jul 1, 2021
    Replies:
    5
    Views:
    188
    BrianTrick
    Jul 2, 2021
  34. black70buick

    71 rear end TLC

    black70buick, Jun 18, 2021
    Replies:
    10
    Views:
    302
    monzaz
    Jun 30, 2021
  35. Groucho70

    New gears

    Groucho70, Jun 17, 2021
    Replies:
    9
    Views:
    264
    OHC JOE
    Jun 22, 2021
  36. Buickcub

    8.5 10 bolt suggestions

    Buickcub, Jan 12, 2021 ... 2
    Replies:
    28
    Views:
    889
    monzaz
    Jun 21, 2021
  37. GMMADMAN

    12 bolt in my '66 Skylark

    GMMADMAN, Dec 8, 2018 ... 2
    Replies:
    34
    Views:
    1,787
    monzaz
    Jun 8, 2021
  38. lbrod

    65 GS differential cover gasket

    lbrod, Jun 7, 2021
    Replies:
    3
    Views:
    102
    LARRY70GS
    Jun 8, 2021
  39. Dalton69Skylark

    '69 Skylark Rear End needed

    Dalton69Skylark, Jan 26, 2021
    Replies:
    13
    Views:
    536
    monzaz
    Jun 1, 2021
  40. Chi-Town67

    '67 GS Posi rear end value?

    Chi-Town67, May 30, 2021
    Replies:
    5
    Views:
    231
    monzaz
    Jun 1, 2021
  41. SS/GN

    12 Bolt pinion seal leaks

    SS/GN, May 20, 2021
    Replies:
    15
    Views:
    270
    SS/GN
    Jun 1, 2021
  42. nekkidhillbilly

    72 lesabre 8.5 28 or 30 spline?

    nekkidhillbilly, Apr 19, 2021
    Replies:
    14
    Views:
    370
    nekkidhillbilly
    May 25, 2021
  43. Chi-Town67

    Upper trailing arm difference

    Chi-Town67, May 23, 2021
    Replies:
    9
    Views:
    181
    Steve Reynolds
    May 24, 2021
  44. Richie

    Markings on axle tube

    Richie, May 22, 2021
    Replies:
    10
    Views:
    195
    BrianTrick
    May 23, 2021
  45. silly

    Want to change gears from 3.08 to 3.73 on my 1975 buick lesabre

    silly, Apr 24, 2021
    Replies:
    7
    Views:
    304
    monzaz
    May 14, 2021
  46. 1969RIVI

    9 3/8 Posi gear ID

    1969RIVI, May 8, 2021
    Replies:
    17
    Views:
    311
    1969RIVI
    May 10, 2021
  47. Rich Skylark

    1967 Olds Rear

    Rich Skylark, May 5, 2021
    Replies:
    6
    Views:
    208
    Mark Demko
    May 7, 2021
  48. James3047

    Posi 12 bolt

    James3047, Apr 6, 2021
    Replies:
    8
    Views:
    456
    BrianTrick
    May 4, 2021
  49. Mark G

    10 Bolt vs 12 Bolt Width

    Mark G, Mar 30, 2021
    Replies:
    18
    Views:
    530
    BrianTrick
    May 1, 2021
  50. desordi

    Adding to the Lore: 1970 rear axle code

    desordi, Apr 22, 2021
    Replies:
    5
    Views:
    597
    Hawken
    Apr 29, 2021
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