1. Welcome to Tacoma World!

    You are currently viewing as a guest! To get full-access, you need to register for a FREE account.

    As a registered member, you’ll be able to:
    • Participate in all Tacoma discussion topics
    • Communicate privately with other Tacoma owners from around the world
    • Post your own photos in our Members Gallery
    • Access all special features of the site

What kind of differential?

Discussion in '1st Gen. Tacomas (1995-2004)' started by 45acp, Aug 19, 2009.

  1. Aug 19, 2009 at 5:26 PM
    #1
    45acp

    45acp [OP] Paint me back in Wyoming again...

    Joined:
    Aug 9, 2009
    Member:
    #20861
    Messages:
    6,481
    Gender:
    Male
    First Name:
    Jonathan
    Boring, Wisconsin
    Vehicle:
    bone stock / unmolested 04 2.7L
    Finally buying my first Tacoma!

    My apologies if it's a dumb question, but unfortunately I know next to nothing about vehicles. I never heard of differentials until I came here.
    I've read the howstuffworks.com explanation on differentials but how would I know what kind is on my Tacoma?

    To begin with, it's an '04 4x4 w/ standard transmission. No TRD decals.
     
  2. Aug 19, 2009 at 5:36 PM
    #2
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Moderator

    Joined:
    May 8, 2008
    Member:
    #6497
    Messages:
    106,188
    Gender:
    Male
    First Name:
    FlimFlubberJAM
    Tenoe, AZ
    Vehicle:
    2013 Rubicon Unlimited,
    4.10 gears, sliders, and lots of buttons.
    You should have a code on the sticker on the door jamb. It should be a letter, followed by 2 mumbers, then another letter.
    Example:
    B07A

    Find the code, and post it up, and we can tell ya what you have. :)
     
  3. Aug 19, 2009 at 5:36 PM
    #3
    ForeRunner

    ForeRunner Scotch before noon. Moderator

    Joined:
    Sep 9, 2006
    Member:
    #7
    Messages:
    12,110
    Gender:
    Male
    First Name:
    Drunken Sailor
    Somewhere between Maine and Florida
    Vehicle:
    2016 Subaru WRX STI Limited (no wing)
    Extra PSI
    Guessing an open diff, unless someone has removed the stickers and you have a button that says "RR Diff Lock" in orange writing to the left of the steering column.
     
  4. Aug 19, 2009 at 5:48 PM
    #4
    45acp

    45acp [OP] Paint me back in Wyoming again...

    Joined:
    Aug 9, 2009
    Member:
    #20861
    Messages:
    6,481
    Gender:
    Male
    First Name:
    Jonathan
    Boring, Wisconsin
    Vehicle:
    bone stock / unmolested 04 2.7L
    I'll try and find out what the code is and post it. Thanks
     
  5. Sep 8, 2009 at 2:42 PM
    #5
    45acp

    45acp [OP] Paint me back in Wyoming again...

    Joined:
    Aug 9, 2009
    Member:
    #20861
    Messages:
    6,481
    Gender:
    Male
    First Name:
    Jonathan
    Boring, Wisconsin
    Vehicle:
    bone stock / unmolested 04 2.7L
    Finally brought it home today. Anyway, I think I found the numbers you were talking about. It is B07A
     
  6. Sep 8, 2009 at 3:15 PM
    #6
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Moderator

    Joined:
    May 8, 2008
    Member:
    #6497
    Messages:
    106,188
    Gender:
    Male
    First Name:
    FlimFlubberJAM
    Tenoe, AZ
    Vehicle:
    2013 Rubicon Unlimited,
    4.10 gears, sliders, and lots of buttons.
    Congrates! You have a 4:30 gear ratio. :)
     
  7. Sep 8, 2009 at 3:44 PM
    #7
    45acp

    45acp [OP] Paint me back in Wyoming again...

    Joined:
    Aug 9, 2009
    Member:
    #20861
    Messages:
    6,481
    Gender:
    Male
    First Name:
    Jonathan
    Boring, Wisconsin
    Vehicle:
    bone stock / unmolested 04 2.7L
    What does that mean? Sorry. :crapstorm:
     
  8. Sep 8, 2009 at 4:13 PM
    #8
    wolfgang123

    wolfgang123 Well-Known Member

    Joined:
    Jul 7, 2009
    Member:
    #19369
    Messages:
    1,426
    Gender:
    Male
    First Name:
    Skyler
    Statesboro, GA
    Vehicle:
    1997 TACOMA - 4x4
    hey dont want to take over your thread here 45acp, but Chris i was hoping you could help me out with mine -- B02A
     
  9. Sep 8, 2009 at 5:12 PM
    #9
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Moderator

    Joined:
    May 8, 2008
    Member:
    #6497
    Messages:
    106,188
    Gender:
    Male
    First Name:
    FlimFlubberJAM
    Tenoe, AZ
    Vehicle:
    2013 Rubicon Unlimited,
    4.10 gears, sliders, and lots of buttons.
    You have 3:58's.
     
  10. Sep 8, 2009 at 5:13 PM
    #10
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Moderator

    Joined:
    May 8, 2008
    Member:
    #6497
    Messages:
    106,188
    Gender:
    Male
    First Name:
    FlimFlubberJAM
    Tenoe, AZ
    Vehicle:
    2013 Rubicon Unlimited,
    4.10 gears, sliders, and lots of buttons.
    It means for every 4.3 revolutions of the Drive shaft, the rear axel spins 1 time.
     
  11. Sep 8, 2009 at 6:09 PM
    #11
    wolfgang123

    wolfgang123 Well-Known Member

    Joined:
    Jul 7, 2009
    Member:
    #19369
    Messages:
    1,426
    Gender:
    Male
    First Name:
    Skyler
    Statesboro, GA
    Vehicle:
    1997 TACOMA - 4x4
    cool i didnt know about the code thing. Another side question on my tacoma (1997 basic extended cab 4x4 srs model) i have locking diffs in the front and limited slip in the rear right? to be honest i dont really know if the diff, is correct to use for the front but what do i know i am just a kid.
     
  12. Sep 8, 2009 at 6:10 PM
    #12
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Moderator

    Joined:
    May 8, 2008
    Member:
    #6497
    Messages:
    106,188
    Gender:
    Male
    First Name:
    FlimFlubberJAM
    Tenoe, AZ
    Vehicle:
    2013 Rubicon Unlimited,
    4.10 gears, sliders, and lots of buttons.
    You have Locking Hubs in the front, and an Open rear diff. :)
     
  13. Sep 8, 2009 at 6:42 PM
    #13
    pittim

    pittim mittip

    Joined:
    May 28, 2008
    Member:
    #6939
    Messages:
    16,542
    Gender:
    Male
    Vehicle:
    Respect your elder gen.
    Pink slider.
    what does a tcase ratio mean? I know in lo for the its like 2.5:1 and hi is 1:1

    does that mean with my TRD, in Hi it's 4.1:1, and in Lo it's like a 10:1 drive?
     
  14. Sep 8, 2009 at 6:44 PM
    #14
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Moderator

    Joined:
    May 8, 2008
    Member:
    #6497
    Messages:
    106,188
    Gender:
    Male
    First Name:
    FlimFlubberJAM
    Tenoe, AZ
    Vehicle:
    2013 Rubicon Unlimited,
    4.10 gears, sliders, and lots of buttons.
    Yep
     
  15. Sep 8, 2009 at 9:21 PM
    #15
    45acp

    45acp [OP] Paint me back in Wyoming again...

    Joined:
    Aug 9, 2009
    Member:
    #20861
    Messages:
    6,481
    Gender:
    Male
    First Name:
    Jonathan
    Boring, Wisconsin
    Vehicle:
    bone stock / unmolested 04 2.7L
    If I understand correctly (from what I've read in other threads), the tire size is partially dependent on the gear ratio. Is there a range of tire sizes I can choose from, or am I limited to just one?
     
  16. Sep 8, 2009 at 9:33 PM
    #16
    pittim

    pittim mittip

    Joined:
    May 28, 2008
    Member:
    #6939
    Messages:
    16,542
    Gender:
    Male
    Vehicle:
    Respect your elder gen.
    Pink slider.
    you can buy whatever fits on your truck.

    once you get into bigger tires you're going to want to regear due to the size of the tire.

    once you get into 33's (with the V6 at least) you'll be able to tell there is some powerloss and should think about possibly regearing. if you go bigger you're definately going to want to regear.
     
  17. Sep 9, 2009 at 5:18 AM
    #17
    45acp

    45acp [OP] Paint me back in Wyoming again...

    Joined:
    Aug 9, 2009
    Member:
    #20861
    Messages:
    6,481
    Gender:
    Male
    First Name:
    Jonathan
    Boring, Wisconsin
    Vehicle:
    bone stock / unmolested 04 2.7L
    If I understand correctly, I can go up to 32", but if I want 33" or above, I'd have to re-gear? I measured the diameter of mine and they appear to be 29".
     
  18. Sep 9, 2009 at 6:15 AM
    #18
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Moderator

    Joined:
    May 8, 2008
    Member:
    #6497
    Messages:
    106,188
    Gender:
    Male
    First Name:
    FlimFlubberJAM
    Tenoe, AZ
    Vehicle:
    2013 Rubicon Unlimited,
    4.10 gears, sliders, and lots of buttons.
    You need to go by the size on the side of the tire. With 4:30's, you would be fine with w 32" tall tire. A 265/75/16 for example.
     
  19. Sep 9, 2009 at 9:44 AM
    #19
    45acp

    45acp [OP] Paint me back in Wyoming again...

    Joined:
    Aug 9, 2009
    Member:
    #20861
    Messages:
    6,481
    Gender:
    Male
    First Name:
    Jonathan
    Boring, Wisconsin
    Vehicle:
    bone stock / unmolested 04 2.7L
    Just found the tire sizes on the door frame. Thanks for the help!
     
  20. Sep 9, 2009 at 9:45 AM
    #20
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Moderator

    Joined:
    May 8, 2008
    Member:
    #6497
    Messages:
    106,188
    Gender:
    Male
    First Name:
    FlimFlubberJAM
    Tenoe, AZ
    Vehicle:
    2013 Rubicon Unlimited,
    4.10 gears, sliders, and lots of buttons.
    That size is usually the base tire size.
     
To Top