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DRIVING SYSTEMS A-TRAC/AUTO LSD/Lock Diff

Discussion in '2nd Gen. Tacomas' started by sebiotacoma, Jun 9, 2009.

  1. Jun 9, 2009 at 5:19 PM
    #1
    sebiotacoma

    sebiotacoma [OP] Well-Known Member

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    I have 09' db cab 4x4 with the TRD Package. It's my first 4x4 truck.Need some advise on different situations where I can use the A-TRAC ,AUTO LSD ,Rear Locking Diff without damaging the truck. Other than the examples in the owner's manual.Which one is the right one to use in the rain and so on. Also have downhill assist, hill start assist so many gadgets. Or do I just stick to the basics and just use the 4x4 low and hi. Are all the gadgets useless.
     
  2. Jun 9, 2009 at 5:37 PM
    #2
    brian

    brian Another Traitor

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    Certainly never use your locking diff in any other situation than mud or snow, when you don't have traction. Lockers will get you out, without a doubt. You should never use it on dry pavement or any solid ground for the most part.

    Auto LSD? I thought you either got the locker or the LSD? I'm confused now, but I know they put that button there to be able to control it. I'd just leave it on. If its 'AUTO' then why not. My 2007 has the LSD in it, theres no button to control it ;)

    A-TRAC? Hell if I know.... I don't have that shit, chances are (like any traction system) it reduces power to the axles to prevent burnouts and slides. I'd probably never use it, but I'm sure someone who has it will pipe up about it. If you were in the rain, I might consider using it and turning the LSD off. I'm tired of trying to get out into traffic and my tires break loose every damn time I'm trying to pull onto the highway in the rain. Thats the only time I could see it being helpful.


    I guess it all depends on how you drive though..... to me, most of them would be useless, but I'm sure they would come in handy for you.

    Hope I didn't completely lose you or waste your time by reading this long and boring post.
     
  3. Jun 9, 2009 at 5:53 PM
    #3
    sebiotacoma

    sebiotacoma [OP] Well-Known Member

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    Thanks for your honest advise
     
  4. Jun 9, 2009 at 6:16 PM
    #4
    TL697

    TL697 Well-Known Member

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    most conditions - leave the traction control on...

    locker - only necessary when you are really stuck and the traction control won't let the tires spin...

    Auto LSD - uses brake modulation to simulate a posi rear end

    A-Trac - it uses brake modulation to simulate an auto LSD in both the front and rear axles...

    get out in the woods and use them to see how they work.

    if you need more in depth discussion - PM me
     
  5. Jun 9, 2009 at 6:41 PM
    #5
    johnecon2001

    johnecon2001 Well-Known Member

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    Use your locker whenever you lift a rear wheel and can't gain traction while offroading.
    Mud and snow isn't the only place you need it..
     
  6. Jun 9, 2009 at 7:08 PM
    #6
    ClemsonTacoma

    ClemsonTacoma Well-Known Member

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    im not sure, the button with the car fishtailing you have to press to do a burnout, and when im offroad messing around and it can tell im out of control and i feel the truck depress the brakes its self
     
  7. Jun 9, 2009 at 7:21 PM
    #7
    judd94

    judd94 Well-Known Member

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    toyota has a sales site for the FJ. on this site is video of all the cool things it does. which is pretty much the same as the Taco but it gets all the credit. WTF right? anyway, there are plenty of demo videos of fjs using a-trac, diff lock, etc. the video showing the a-trac says that the computer senses which wheels have traction and put the power to those wheels, using it climbing or muddy terrain or rocky areas, etc.
    i think it might be www.toyota.com/fjcruiser
     
  8. Jun 10, 2009 at 7:06 AM
    #8
    brian

    brian Another Traitor

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    Of course.... I just didn't assume he'd be doing any real offroading.
     
  9. Jun 10, 2009 at 7:29 AM
    #9
    drew02a

    drew02a Rocking your mom's world Since 1997

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    The locker is also helpful in sand. If you're driving down the beach or in some dunes, you may be able to progress without the locker, but leaving it engaged will improve your fuel economy.
     
  10. Jun 10, 2009 at 5:00 PM
    #10
    luni

    luni Resident Gun-toting Hippie

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    http://www.tacomaworld.com/forum/off-roading-trails/37082-how-does-trac-stack-up.html

    One of a billion ATRAC threads. I'm tired of repeating myself. All the traction control systems on the 09 TRD ORs get critisized by the people that haven't used/seen them. I straight embarassed more than a few lifted jeeps with rugged trails and almost stock ride height by using my options properly. What these trucks can do stock is retarded.

    There's an active Auto LSD thread right now too. And it shouldn't be to hard to find info on lockers and their benefits/deficiencies.
     
  11. Jun 10, 2009 at 5:04 PM
    #11
    TL697

    TL697 Well-Known Member

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    I completely agree... I'm extremely happy w/ my '09 and all of the OR options...
     
  12. Jun 10, 2009 at 5:10 PM
    #12
    luni

    luni Resident Gun-toting Hippie

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    From what I can tell ATRAC when used properly is as good as a locker. The downside being that it wears your brakes faster (duh) and overheats to the point of activating a safety cut-off (boo). But you're wheeling on open diffs so there's less stress on the driveline (yay) and a tighter turning radius (w00t). But it requires loosing traction to activate (ehh) so that could be a downside. But ATRAC is more than capable of driving through a wheel stand (or two:thumbsup:)
     
  13. Jun 10, 2009 at 5:15 PM
    #13
    TL697

    TL697 Well-Known Member

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    Yeah...

    I often drive 30+ miles on the weekend in 4Lo w/ A-Trac on, and rarely have to use the locker, but it does help when necessary... And, the locker doesn't make all those crazy noises... :)
     
  14. Jun 10, 2009 at 5:20 PM
    #14
    luni

    luni Resident Gun-toting Hippie

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    People look at me like I'm retarded when I take a stock(ish) truck at rocks, then they start giggling when it sounds like a bunch of pissed off crabs are tearing my drivetrain apart, then I give them a thumbs up and keep on rolling and they look sad. I thought they would be happy for me.
     
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