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

When to use 4D and 2L?

Discussion in '2nd Gen. Tacomas (2005-2015)' started by 97lt1ta, Jan 1, 2013.

  1. Jan 1, 2013 at 5:23 PM
    #1
    97lt1ta

    97lt1ta [OP] Well-Known Member

    Joined:
    Dec 29, 2012
    Member:
    #93985
    Messages:
    79
    Gender:
    Male
    Las Vegas
    Vehicle:
    07 prerunner
    I've been searching for trying to figure out the right time to use 4d and 2L on a 2wd prerunner. I'm very new to the off road scene and like to know the ins and outs of how to drive it properly with out getting stuck cause I was in the wrong gear. I'm mainly use too hooking up on a paved track then mud and dirt and that's if I don't break the rear end and make it all the way down the track lol
     
  2. Jan 1, 2013 at 5:36 PM
    #2
    OZ-T

    OZ-T You are going backwards

    Joined:
    Dec 15, 2009
    Member:
    #27584
    Messages:
    50,399
    Gender:
    Male
    First Name:
    Peter North
    British Columbia
    Vehicle:
    Mag Grey 09 Trd Sport DCLB 4x4
    OME 885x , OME shocks and Dakars , Wheelers SuperBumps front and rear , 275/70/17 Hankook ATm , OEM bed mat , Weathertech digifit floor liners , Weathertech in-channel vents , headache rack , Leer 100RCC commercial canopy , TRD bedside decals removed , Devil Horns by Andres , HomerTaco Satoshi
    The selection of gears in the auto only determines the highest gear the truck will shift up to
     
  3. Jan 1, 2013 at 5:43 PM
    #3
    xJuice

    xJuice My spoon is too Big!

    Joined:
    Oct 24, 2007
    Member:
    #3208
    Messages:
    9,890
    Gender:
    Male
    First Name:
    Josh
    N. Texas
    Vehicle:
    19 Tundra MGM
    TRD Front & Rear Sway Bar, TRD Pro LED Headlights, Undercover SE, Rear diff. Relocate, console organizer, debadged, color matched handles, mirror caps, and grill
    This.

    Also, there's not a 4D or 2L. There's a D, a 4, a 3, a 2, and an L.
     
    SR-71A likes this.
  4. Jan 1, 2013 at 5:50 PM
    #4
    97lt1ta

    97lt1ta [OP] Well-Known Member

    Joined:
    Dec 29, 2012
    Member:
    #93985
    Messages:
    79
    Gender:
    Male
    Las Vegas
    Vehicle:
    07 prerunner
    Gotcha that makes more sense so basically in mudding you'd want to be in 4 and if you get in a bit of a pinch shift to L cause that locks the rear dif ?
     
  5. Jan 1, 2013 at 5:54 PM
    #5
    97lt1ta

    97lt1ta [OP] Well-Known Member

    Joined:
    Dec 29, 2012
    Member:
    #93985
    Messages:
    79
    Gender:
    Male
    Las Vegas
    Vehicle:
    07 prerunner
    Sorry if this sounds like I'm a complete idiot. I just know when I started building a drag/ still street car I made a few mistakes on the track and the parts and bought my truck as a daily plus some mud/ trailing fun
     
  6. Jan 1, 2013 at 5:57 PM
    #6
    Max-4_Yota

    Max-4_Yota The Welfare Cadilac

    Joined:
    Dec 10, 2009
    Member:
    #27357
    Messages:
    4,235
    Gender:
    Male
    First Name:
    Michael
    South Carolina
    Vehicle:
    3rd gen Tacoma
    Chicken lights, chrome and smoke tunes.

    L does not lock the rear diff. The Rear Diff lock button locks the rear diff if equipped.
     
  7. Jan 1, 2013 at 5:58 PM
    #7
    Pugga

    Pugga Pasti-Dip Free 1983 - 2015... It was a good run

    Joined:
    Jun 18, 2010
    Member:
    #39131
    Messages:
    38,409
    Gender:
    Male
    First Name:
    Mike
    Massachusetts
    Vehicle:
    '19 Ford F-250 6.7 SCrew
    F-250 Land Yacht Mod
    The gear selection has nothing to do with the locker function... Your auto transmission has 5 gears. Selecting anything lower than D only allows the truck to shift as high as that gear, that's it. The locker, if you have one, is operated completely separately.

    Actually, I see the truck with the hood scoop in your avatar so that leads me to believe you have a TRD Sport. If that's the case, you do not have a rear diff locker. You have a mechanical limited slip rear diff, it is not selectable.
     
  8. Jan 1, 2013 at 5:59 PM
    #8
    Spoonman

    Spoonman Granite Guru

    Joined:
    Sep 11, 2011
    Member:
    #63328
    Messages:
    9,812
    Gender:
    Male
    First Name:
    Jamie
    Alberta
    Your rear diff will only be locked if you have a Trd offroad, and choose to lock it. It's not dependent on the gear. I would stick to first gear (L as in Low), for 90% of offroad driving. Unless its high speed of course.
     
  9. Jan 1, 2013 at 6:01 PM
    #9
    97lt1ta

    97lt1ta [OP] Well-Known Member

    Joined:
    Dec 29, 2012
    Member:
    #93985
    Messages:
    79
    Gender:
    Male
    Las Vegas
    Vehicle:
    07 prerunner
    Thanks guys sorry for the rookie question
     
  10. Mar 2, 2019 at 6:40 AM
    #10
    NEKyota

    NEKyota Member

    Joined:
    Nov 7, 2016
    Member:
    #201758
    Messages:
    21
    Gender:
    Male
    First Name:
    Tobias
    Northeast Kingdom VT
    Vehicle:
    2010 Tacoma TRD Sport
    Bacame badass when I bought it.. well.. a little more badass..
    I know this is an old thread but in my experience shifting from D to 4 does actually alter rpms and shift points.. see for yourself.. find a speed where D is maintaining 1100-1300 rpms.. I find it more obvious at slow speeds just chugging along.. then knock it into 4.. you will find it jump up a couple hundred rpms.. experiencing this proved to ME it does more than just limit its top gear..
     
    Last edited: Mar 2, 2019
    GrandTheftAngel and tcBob like this.
  11. Mar 2, 2019 at 9:09 AM
    #11
    Newfiebruh

    Newfiebruh Well-Known Member

    Joined:
    Feb 7, 2018
    Member:
    #243750
    Messages:
    945
    Gender:
    Male
    First Name:
    Tom
    Vehicle:
    2010 Black sand pearl access cab Base
    LED's, Tonneau cover, Fog lights, Front mud flaps, Cooper discoverer a/t3 tires, Tailgate reinforce, Cruise control, LED ditch lights, Bluedriver, 8-ball shift knob, Hitch, SR5 grille.
    No, youre simply just changing from OD to 4th. These trucks aren’t magic, if you lock out OD all you’re doing is locking out OD
     
  12. Mar 2, 2019 at 9:12 AM
    #12
    NEKyota

    NEKyota Member

    Joined:
    Nov 7, 2016
    Member:
    #201758
    Messages:
    21
    Gender:
    Male
    First Name:
    Tobias
    Northeast Kingdom VT
    Vehicle:
    2010 Tacoma TRD Sport
    Bacame badass when I bought it.. well.. a little more badass..
    Not at 35 mph.
     
  13. Mar 2, 2019 at 9:57 AM
    #13
    Newfiebruh

    Newfiebruh Well-Known Member

    Joined:
    Feb 7, 2018
    Member:
    #243750
    Messages:
    945
    Gender:
    Male
    First Name:
    Tom
    Vehicle:
    2010 Black sand pearl access cab Base
    LED's, Tonneau cover, Fog lights, Front mud flaps, Cooper discoverer a/t3 tires, Tailgate reinforce, Cruise control, LED ditch lights, Bluedriver, 8-ball shift knob, Hitch, SR5 grille.
    Yes, count the number of gear changes it’ll shift to a very high gear so that you get better fuel economy
     
  14. Mar 2, 2019 at 12:57 PM
    #14
    Bebop

    Bebop Old fashion cowboy

    Joined:
    Feb 11, 2016
    Member:
    #177835
    Messages:
    4,407
    Gender:
    Male
    First Name:
    Nick
    Castle rock Colorado
    Vehicle:
    2012 Toyota Tacoma baja
    6inch lift sitting on bilstein coilovers. Lexus is300 studs in front to keep stock wheels, general grabber red letters, nfab front bumper.
    I can’t believe somebody doesn’t know how to drive an automatic transmission. Thought I’ve seen it all
     
    eherlihy, Newfiebruh and dustin19d like this.
  15. Mar 2, 2019 at 1:03 PM
    #15
    crazysccrmd

    crazysccrmd Well-Known Member

    Joined:
    Mar 17, 2016
    Member:
    #181592
    Messages:
    8,298
    Gender:
    Male
    Vehicle:
    Aprilia Tuareg 660
    It proves that it does exactly what you said it doesn’t. The RPM increases because you just told the transmission to shift no higher than 4th gear while it was in overdrive so it downshifted.
     
    dustin19d and Bebop like this.
  16. Mar 2, 2019 at 1:07 PM
    #16
    dustin19d

    dustin19d Well-Known Member

    Joined:
    Apr 19, 2008
    Member:
    #6076
    Messages:
    726
    Gender:
    Male
    First Name:
    Dustin
    Washington
    Vehicle:
    06 Sport, 4X4, 6-Speed
    Welds and Cuts and stuff
  17. Dec 21, 2020 at 8:10 PM
    #17
    NEKyota

    NEKyota Member

    Joined:
    Nov 7, 2016
    Member:
    #201758
    Messages:
    21
    Gender:
    Male
    First Name:
    Tobias
    Northeast Kingdom VT
    Vehicle:
    2010 Tacoma TRD Sport
    Bacame badass when I bought it.. well.. a little more badass..
    You guys are funny. All heady. Decreasing speed by coasting in the 30 mile an hour range.. shift into 4.. slow dip and suddenly an increase in rpm. I know my truck isn't hanging in the highest gear when at that speed range.. because I'm aware my truck already downshifted to be in a usable range for needed torque when asked. And next time, like the headies do, don't make people feel uneducated and like an idiot for posting their thoughts/experiences.. the above rpm changes happen even when I'm driving constantly at 35-40.. once I shift.. it all changes and moves up in rpms.. no way my truck is running its highest gear at 35-40.. but ok. I'll be the idiot this time..
     
  18. Dec 21, 2020 at 8:14 PM
    #18
    medic2230

    medic2230 @Koditten Pirate Radio member #002

    Joined:
    Oct 13, 2008
    Member:
    #9942
    Messages:
    63,981
    Gender:
    Male
    First Name:
    Murph
    Bama! Roll Tide
    Vehicle:
    2011 Taco 4x4 DCLB 2019 TRD PRO 4runner 2018 RAM 2500 mega cab
    20% Tint, OME 3"complete lift with Dakar's, Light Racing UCA's, 285/75/16 Nitto Terra Grapplers, 10 HP TW sticker, Ultraguage, B.A.M.F. Rock Sliders, MedicFab Bed Rack, Relentless front bumper, Air Flow Snorkel, Ham comms, Tech Deck
    I usually use 4D when I have 3 passengers with me.

    Haven’t been able to use 2L since my 1st gen with manual hubs.
     
  19. Dec 21, 2020 at 8:14 PM
    #19
    OZ-T

    OZ-T You are going backwards

    Joined:
    Dec 15, 2009
    Member:
    #27584
    Messages:
    50,399
    Gender:
    Male
    First Name:
    Peter North
    British Columbia
    Vehicle:
    Mag Grey 09 Trd Sport DCLB 4x4
    OME 885x , OME shocks and Dakars , Wheelers SuperBumps front and rear , 275/70/17 Hankook ATm , OEM bed mat , Weathertech digifit floor liners , Weathertech in-channel vents , headache rack , Leer 100RCC commercial canopy , TRD bedside decals removed , Devil Horns by Andres , HomerTaco Satoshi
    A year and a half later...

    where you been bro ?
     
    EdinCincinnati likes this.
  20. Dec 21, 2020 at 8:16 PM
    #20
    medic2230

    medic2230 @Koditten Pirate Radio member #002

    Joined:
    Oct 13, 2008
    Member:
    #9942
    Messages:
    63,981
    Gender:
    Male
    First Name:
    Murph
    Bama! Roll Tide
    Vehicle:
    2011 Taco 4x4 DCLB 2019 TRD PRO 4runner 2018 RAM 2500 mega cab
    20% Tint, OME 3"complete lift with Dakar's, Light Racing UCA's, 285/75/16 Nitto Terra Grapplers, 10 HP TW sticker, Ultraguage, B.A.M.F. Rock Sliders, MedicFab Bed Rack, Relentless front bumper, Air Flow Snorkel, Ham comms, Tech Deck

Products Discussed in

To Top