The "Juice Box"

Ask all your auto trans and torque converter questions here.

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  1. Jim Weise
    Sticky

    VP converter- Trans visual ID guide

    Jim Weise, Dec 19, 2007 ... 2 3
    Replies:
    41
    Views:
    53,065
    TrunkMonkey
    May 12, 2023
  2. techg8
    Sticky

    TH350 / 200R4 swap summary

    techg8, Apr 11, 2009 ... 3 4 5
    Replies:
    87
    Views:
    37,368
    Slow200
    Apr 3, 2024
  3. Mr. Sunset
    Sticky

    Got jiggy with it. 4L80E behind 455 BBB

    Mr. Sunset, Oct 18, 2015 ... 5 6 7
    Replies:
    132
    Views:
    35,317
    Mr. Sunset
    Nov 8, 2022
  4. Kirk

    How to Rebuild a Super-Turbine 300 (ST-300) - A Pictoral Essay

    Kirk, Jan 16, 2006 ... 2 3 4
    Replies:
    79
    Views:
    28,597
    Mark300v8
    Apr 24, 2020
  5. LARRY70GS

    Transmission Cooler Recommendation.

    LARRY70GS, Jul 28, 2015 ... 3 4 5
    Replies:
    96
    Views:
    26,359
    '72 Skylark Custom 4bbl
    Feb 16, 2020
  6. leojvs

    How much power can a STOCK t400 handle?

    leojvs, Oct 10, 2008
    Replies:
    16
    Views:
    23,927
    Gary Bohannon
    Jul 12, 2022
  7. GRIMM

    Torque Converter Preference

    GRIMM, May 7, 2006 ... 3 4 5
    Replies:
    92
    Views:
    23,066
    speedtigger
    Dec 3, 2011
  8. campfamily

    What does a flexplate do?

    campfamily, Oct 17, 2007
    Replies:
    8
    Views:
    22,889
    alec296
    Oct 19, 2007
  9. S2X01

    200-4R wiring

    S2X01, Jul 5, 2012
    Replies:
    19
    Views:
    20,542
    GS Jim
    Jul 13, 2012
  10. tinker14bs

    How to ruin a 2004r in less than 10 minutes.....

    tinker14bs, Dec 3, 2015 ... 2 3
    Replies:
    47
    Views:
    18,743
    sean Buick 76
    Mar 15, 2016
  11. Tom Miller

    Foolproof Speedometer gear formula for dummies? TH350

    Tom Miller, Mar 24, 2015
    Replies:
    16
    Views:
    18,077
    Jeff Mann
    May 8, 2015
  12. BWINN519

    Turbo 400 to 200R4 trans Questions

    BWINN519, Nov 13, 2011 ... 3 4 5
    Replies:
    80
    Views:
    17,007
    brycenel
    Jul 18, 2015
  13. nailheadina67

    Official '66 SP 400 buildup thread

    nailheadina67, Mar 24, 2005 ... 7 8 9
    Replies:
    172
    Views:
    16,759
    Golden Oldie 65
    Apr 16, 2010
  14. simon1243

    700r4 vs 200r4

    simon1243, Sep 14, 2004 ... 2
    Replies:
    20
    Views:
    16,205
    nekkidhillbilly
    Sep 3, 2007
  15. EEE

    Got the Transgo 1-2 shift kit, any suggestions before installation?

    EEE, Jul 17, 2007 ... 2
    Replies:
    27
    Views:
    15,534
    jakeshoe
    Oct 23, 2007
  16. tomhae

    TH350 slipping

    tomhae, Feb 14, 2011
    Replies:
    14
    Views:
    14,428
    BRUCE ROE
    Mar 16, 2011
  17. wildcatsrule

    TH 400 recommended fluid

    wildcatsrule, May 20, 2009
    Replies:
    18
    Views:
    13,902
    Nothingface5384
    Dec 10, 2013
  18. Christopher Spouse Drew

    Average Th400 Rebuild Cost

    Christopher Spouse Drew, Sep 25, 2018 ... 2 3
    Replies:
    43
    Views:
    13,881
    hvramesq
    May 31, 2020
  19. David Butts

    Governor info

    David Butts, Jun 24, 2010 ... 2 3
    Replies:
    47
    Views:
    13,736
    AlexK
    Apr 5, 2021
  20. Deacon07

    List of cars to get a 200r4 for a 69 350?

    Deacon07, Jan 2, 2013 ... 2
    Replies:
    22
    Views:
    13,502
    Reidk
    Feb 10, 2022
  21. Buiyak

    Tranny cooler lines - Inlet/Outlet ??

    Buiyak, Jan 3, 2011
    Replies:
    15
    Views:
    12,890
    Buiyak
    Feb 17, 2011
  22. DauntlessSB92

    Extreme Automatics 2004-r Install

    DauntlessSB92, May 20, 2013 ... 2 3
    Replies:
    57
    Views:
    12,737
    DauntlessSB92
    Aug 14, 2016
  23. grandville455

    Turbo 400 2-3 shift problem

    grandville455, Nov 11, 2007
    Replies:
    8
    Views:
    11,992
    fireball
    Nov 16, 2007
  24. Johnny Angel

    Max line pessure for TH400?

    Johnny Angel, Jul 9, 2007
    Replies:
    19
    Views:
    11,829
    Johnny Angel
    Jul 27, 2007
  25. 92SSEi

    Buick Dual Path Turbine Drive Tranny question...

    92SSEi, Jul 3, 2008
    Replies:
    18
    Views:
    11,663
    d2_willys
    Nov 6, 2008
  26. 70 gsconvt

    Installing a 200-4R in a 1970 GS, A Tutorial/Pictoral

    70 gsconvt, Mar 16, 2005 ... 2 3
    Replies:
    55
    Views:
    10,998
    70 gsconvt
    May 15, 2013
  27. Yardley

    New converter, now trans is weird

    Yardley, Apr 3, 2008 ... 2 3 4
    Replies:
    69
    Views:
    10,951
    grandville455
    Nov 16, 2009
  28. Oldschool63

    TH400 Won't shift out of 1st

    Oldschool63, Jun 4, 2011
    Replies:
    18
    Views:
    10,929
    stevpiz
    Feb 10, 2020
  29. rmstg2

    4L80E Info?

    rmstg2, Nov 29, 2008 ... 2 3
    Replies:
    51
    Views:
    10,705
    rmstg2
    Jan 3, 2009
  30. Byron

    200R4 Shift problems.

    Byron, Oct 27, 2010
    Replies:
    11
    Views:
    10,493
    BillA
    Oct 28, 2010
  31. speedtigger

    Overdrive on the way for my 65!

    speedtigger, Jul 7, 2010 ... 2 3 4
    Replies:
    66
    Views:
    10,215
    nekkidhillbilly
    Oct 10, 2011
  32. eagleguy

    Shift points for 2004r

    eagleguy, Oct 26, 2012 ... 2
    Replies:
    23
    Views:
    10,177
    eagleguy
    Dec 5, 2012
  33. grobblee

    TH400 Slips in reverse

    grobblee, Sep 22, 2007
    Replies:
    13
    Views:
    10,158
    jakeshoe
    Sep 29, 2007
  34. sharkmonkey

    2004r shifts too late

    sharkmonkey, May 14, 2005 ... 2
    Replies:
    24
    Views:
    10,081
    d2_willys
    Dec 12, 2008
  35. BillA

    TV Cable with Quadrajet Carb

    BillA, May 14, 2011 ... 2
    Replies:
    22
    Views:
    9,580
    chris roesch
    Apr 2, 2012
  36. CanadianBird

    200r4 line pressure specs and TV Cable adjustments

    CanadianBird, May 25, 2007
    Replies:
    19
    Views:
    9,483
    TexasT
    Dec 12, 2014
  37. nickthehick78

    th400 worked perfect, lost 3rd gear out of the blue....

    nickthehick78, Apr 4, 2016 ... 2
    Replies:
    21
    Views:
    9,403
    nickthehick78
    May 15, 2016
  38. 72 pet chicken

    flexible transmission cooling lines?

    72 pet chicken, Feb 4, 2009
    Replies:
    19
    Views:
    8,993
    70sLark
    Feb 4, 2009
  39. deluxe68

    TH350 or converter??

    deluxe68, Apr 1, 2014 ... 2 3
    Replies:
    49
    Views:
    8,893
    deluxe68
    Sep 23, 2016
  40. black70buick

    Breaking the code ... 4L80 or other late model trans -DIY TCM/TCU

    black70buick, Dec 25, 2015 ... 2 3
    Replies:
    42
    Views:
    8,839
    black70buick
    Dec 31, 2023
  41. JESUPERCAT

    2nd gear slipping PowerGlide

    JESUPERCAT, Jun 7, 2008
    Replies:
    16
    Views:
    8,711
    JESUPERCAT
    Jun 24, 2008
  42. TTNC

    I'm trying to understand TV cable adjustments on 200-4R

    TTNC, Jun 1, 2021 ... 2
    Replies:
    26
    Views:
    8,437
    techg8
    Jun 6, 2021
  43. 70sgeek

    TH350 speedo gears - which ones to use?

    70sgeek, Dec 28, 2010
    Replies:
    16
    Views:
    8,395
    70sgeek
    Apr 7, 2011
  44. carmantx

    Broke ANOTHER 200 4R

    carmantx, Sep 4, 2010 ... 2
    Replies:
    37
    Views:
    8,390
    69a-body
    Mar 20, 2011
  45. 455Nick

    Which OD tranny?

    455Nick, Jan 29, 2010 ... 2 3
    Replies:
    42
    Views:
    8,278
    Phatteddie
    Mar 1, 2010
  46. eagleguy

    2004r transmission pan

    eagleguy, Jun 2, 2013 ... 2
    Replies:
    25
    Views:
    8,195
    eagleguy
    Sep 1, 2013
  47. Co2

    Switch pitch wiring

    Co2, Jul 4, 2012 ... 2
    Replies:
    37
    Views:
    8,057
    gbsean
    Jul 11, 2012
  48. RobsTV

    Worse MPG after upgrading to 700r4

    RobsTV, Jun 18, 2007 ... 2
    Replies:
    35
    Views:
    8,006
    RobsTV
    Jun 29, 2007
  49. KTM520EXC

    S/P ST 300-Bruce Roe's Electronic Controller

    KTM520EXC, Oct 11, 2009
    Replies:
    14
    Views:
    8,004
    LARRY70GS
    Feb 2, 2016
  50. Jacka

    ST400 switch pitch

    Jacka, Oct 11, 2012
    Replies:
    16
    Views:
    7,993
    LARRY70GS
    Sep 15, 2016
  51. DCx

    th350 free revs in all forward gears

    DCx, Jan 3, 2009
    Replies:
    8
    Views:
    7,980
    RACEBUICKS
    Jan 17, 2009
  52. online170

    Power rating for stock TH350?

    online170, Jun 30, 2006
    Replies:
    19
    Views:
    7,914
    76century
    Jul 14, 2006
  53. LARRY70GS

    Gear Vendors Overdrive is In!

    LARRY70GS, Jul 22, 2006 ... 2
    Replies:
    38
    Views:
    7,902
    Rodster
    Aug 1, 2006
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