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What gearing do I have?

Discussion in '1st Gen. Tacomas (1995-2004)' started by ywen, Jul 13, 2010.

  1. Jul 13, 2010 at 6:07 AM
    #1
    ywen

    ywen [OP] Well-Known Member

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    03 v6 auto 4x4 with TRD OR package.

    I'm trying to fig out between

    *FGR=43:11=3.909,W(A.D.D)

    *FGR=41:10=4.100,W(A.D.D)
     
  2. Jul 13, 2010 at 6:09 AM
    #2
    98tacoma27

    98tacoma27 is going full "SANDWICH" Moderator

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  3. Jul 13, 2010 at 6:10 AM
    #3
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Moderator

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    4.10 gears, sliders, and lots of buttons.
    You should have a 4 digit gear code on the door sticker. It will be like this:

    B04A


    See what code you have, and use this:


    http://www.tacomaterritory.com/wiki/index.php/Gear_Codes

    First digit:
    • 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
    some '98-00 models have shown a BO code of "???" on the door plate; so far this turns out to be a 3.91 gear ratio, at least for the 5sp. RZN171L-CRPDKAB with factory 31s/265s should be 4.56 with the AT.
    Edit by Ed Quinones on 10-7-05: I used to own a 99 Prerunner ext cab 2.7L with auto tranny and gear code of B07A. It came from the factory with a 4.56 gear ratio.
     
  4. Jul 13, 2010 at 6:11 AM
    #4
    ywen

    ywen [OP] Well-Known Member

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    Thanks!
     
  5. Jul 13, 2010 at 11:01 AM
    #5
    Digiratus

    Digiratus Adventurer

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    The 1st gen Tacomas with TRD electronic locker came with the older differential housing and the 7.5" ring gear and always with the 4.10 gear ratio.

    The 3.90 gear ratio equipped Tacomas came with the larger differential housing with the 8" ring gear. No factory lockers with these, only aftermarket.
     
  6. Jul 13, 2010 at 12:05 PM
    #6
    pittim

    pittim mittip backwards

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    All the ring gears in the rear are 8". Front are 7.5"

    If your R&P are factory, and you have an elocker, you have 4.10s.
     
  7. Jul 13, 2010 at 12:07 PM
    #7
    98tacoma27

    98tacoma27 is going full "SANDWICH" Moderator

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  8. Jul 13, 2010 at 1:49 PM
    #8
    Digiratus

    Digiratus Adventurer

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    Thanks for clarifying guys. Sorry for the miss information.:eek:
     

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