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Cant figure out exactly what gearing i have in my diff, some help would be awesome!

Discussion in '1st Gen. Tacomas' started by John Cheong, Feb 17, 2012.

  1. John Cheong

    John Cheong [OP] Active Member

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    33" falken rocky mountian A/T, 3.5" fabtech lift, Deck plate mod, Painted badges.
    ok i have a 2001 tacoma TRD prerunner with an electric locking diff. the axle code is B03A. ive been looking around and ive come up with a bunch of different answers...4.10,4.56, 3.55. i have no idea for what the gearing is with the e-locker. lemme get your advice!:D
     
  2. tacopyro

    tacopyro Forever learning...

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    i only have a possible answer to your gear ratio. i have the same diff code. and i think its a 4.1

    check this link: http://goo.gl/qbiuO

    CK
     
  3. valon5150

    valon5150 Well-Known Member

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    More then likely 4.10
     
  4. MapleMoose

    MapleMoose Drunk Canadian

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    Same as mine B03A. 4:10 gears
     
  5. wesrunner

    wesrunner Team 4Runner

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    Me too! :D
     
  6. tacopyro

    tacopyro Forever learning...

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  7. Snowman

    Snowman I have a problem for your solution…

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    There arent any factory e-lockers with 4.56. So you can eliminate that possibility.
     
  8. bellassaiw10

    bellassaiw10 Formally afroman5015

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    00 4WD Prerunner
    A = 7.5" ring gear
    B = 8" ring gear
    Next two digits:
    01 = 3:42
    02 = 3:58
    03 = 4:10
    04 = 4:56
    05 = 3:15
    06 = 3:91
    07 = 4.30
    Last digit:
    A = 2 Pinion, Open
    B = 4 Pinion, Open
    C = 2 Pinion OEM Limited Slip
     
  9. iDrew

    iDrew Focaljet.com <-- My CURRENT home

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    Looks like I have myself some factory 4.56 gears. Is that a good thing?
     
  10. Snowman

    Snowman I have a problem for your solution…

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    I think most, if not all, 4cyl autos had 4.56. Something to do with the automatic having taller gears than the manual. :confused: Something like that. So basically if we had 4.10 or 3.xx whatever we would be revving way to high at highway speeds. But dont quote me. haha
     
  11. isu2014

    isu2014 RAT Products

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    View the build. Too much to list.
    You would be revving way lower and have no power. 3.73 or so would save you gas but the truck would be a dog.
     
  12. Snowman

    Snowman I have a problem for your solution…

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    I said dont quote me. hahaha
     
  13. isu2014

    isu2014 RAT Products

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    View the build. Too much to list.
    Just adding to your driveretain knowledge.
     
  14. Snowman

    Snowman I have a problem for your solution…

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    haha
    I knew the reason for the 4cyl autos have 4.56 was something like that.
    Ill put it in the brain for later use. haha
     
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