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A03B axle code what is it? 3.9, 4.1?

Discussion in '1st Gen Builds (2000-2006)' started by cody c, Dec 28, 2023.

  1. Dec 28, 2023 at 10:35 PM
    #1
    cody c

    #1
    cody c [OP] New Member

    Joined:
    Nov 28, 2023
    Member:
    #107633
    Messages:
    87
    Gender:
    Male
    First Name:
    cody
    Vehicle:
    blue 2006 tundra double cab 4x4
    retractable fog lights, dry box mounted winch
    I'm looking for the axle codes, as its winter and I have little interest in putting it on jacks, and might as well create a thread on it for the search engines.

    The web shows an axle code sheet that runs up to 2004 but does not list the A03B code.

    I believe this might be 4.10:1 and it has a limited slip so maybe the B is either a 4 pinion or limited slip code, but its possible the ratios and axle codes are different for 2005-2006 trucks.

    is it 3.9:1 and 4.10:1 and maybe some 4.3:1 for tow packages?

    Thanks!
     
    cody c, Dec 28, 2023
    #1
  2. Dec 30, 2023 at 2:59 PM
    #2
    whodatschrome

    #2
    whodatschrome New Member

    Joined:
    Sep 13, 2023
    Member:
    #103882
    Messages:
    1,775
    Gender:
    Male
    North of North Plains, Oregon
    Vehicle:
    2000 Tundra 4wd AC, 2004 Tundra AC 2wd to 4wd conversion ABS delete
    lots of dents
    2000-2003
    3.91 - V8, 4x4, auto trans
    3.92 - V8, 4x2, auto trans
    4.08 - V6, 4x2, auto trans or manual trans
    4.10 - V6, 4x4, manual trans
    4.30 - V6, 4x4, auto trans

    2004, Regular Cab or Access Cab
    3.91 - V8, 4x4, auto trans
    3.92 - V8, 4x2, auto trans
    4.08 - V6, 4x2, auto trans or manual trans
    4.10 - V6, 4x4, manual trans
    4.30 - V6, 4x4, auto trans

    2004, Double Cab
    4.08 - V8, 4x2, auto trans
    4.10 - V8, 4x4, auto trans

    2005-2006
    3.77 - V6, 4x2, auto trans
    3.91 - V8, 4x4, auto trans
    3.92 - V8, 4x2, auto trans
    4.08 - V6, 4x2, manual trans
     
    whodatschrome, Dec 30, 2023
    #2
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