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

My Brilliant LSD Idea

Discussion in '1st Gen. Tacomas (1995-2004)' started by MowTaco, Jan 17, 2010.

  1. Jan 17, 2010 at 1:19 PM
    #1
    MowTaco

    MowTaco [OP] Well-Known Member

    Joined:
    Sep 9, 2009
    Member:
    #22530
    Messages:
    3,820
    Gender:
    Male
    First Name:
    Matt
    South Dakota
    Vehicle:
    03 GMC Sierra
    Hello all
    I had a brilliant idea the other day while day dreaming in Pre Calc.
    I've been researching different options for LSDs and lockers in my truck, and I have determined that everybody hates 5 luggers.
    Anyway, I was thinking about how they don't offer a true LSD in Tacomas any more, they just use the rear brakes to simulate one. I want mine basically for traction in snow, and I was thinking I could use the E-brake to achieve the same result. I would just have to keep the brake cables separate all the way up to the cab and have 2 levers. When one wheel starts to spin, I pull its corresponding brake to transfer power to the other wheel. Brilliant, right? :D
    Would this work? I don't see why not, but my ideas tend to overlook things and fail miserably.
    To get really fancy, could I tap into the wheel speed sensors on the ABS in the rear to determine which wheel is spinning? Then, i could put a light on each lever that lights up when that wheel is spinning.
    What do you think?
     
  2. Jan 17, 2010 at 1:55 PM
    #2
    rab89

    rab89 Well-Known Member

    Joined:
    Jan 14, 2009
    Member:
    #12578
    Messages:
    5,467
    Gender:
    Male
    First Name:
    Ross
    Kelowna b.c canada
    Vehicle:
    2012 DCLB
    Grillcraft mx black upper and lower BHLM with Gloss black 265 70 17 bfg a/t center console light mini mag mounted in center console debadged bed lights 35W 5000k HID's
    your crazy! i don't know if it would work, but clever idea
     
  3. Jan 17, 2010 at 1:57 PM
    #3
    Hoyal

    Hoyal Whiskey bent and hell bound.

    Joined:
    May 14, 2009
    Member:
    #17221
    Messages:
    18,114
    Gender:
    Male
    First Name:
    Devin
    N 39.2249 W -106.16974
    Vehicle:
    2000 4runner
    OME 3 inch suspension lift Toytec 1in body lift Rodger brown diff drop ARB front bumper Big tires, but want bigger! :) Xrc 8000 winch Hella3000 lights Deck plate mod Diff breather relocate Cb radio 1st gen roll bar Addicted sliders Spider trax wheel spacers.
    Get a locker lol. Im not crafty enough to help you in this area.
     
  4. Jan 17, 2010 at 2:03 PM
    #4
    Crom

    Crom Outside...

    Joined:
    Jun 22, 2009
    Member:
    #18782
    Messages:
    8,331
    Gender:
    Male
    First Name:
    Nick
    San Diego, CA
    Vehicle:
    2009 4x4 DCSB Overland Build
    Millions
    I have heard reports of prerunner folks using the e-brake to trick the truck into engaging the Auto-LSD. I think your specific idea would work but it may be easier to invest in a locker.
     
  5. Jan 17, 2010 at 2:43 PM
    #5
    rab89

    rab89 Well-Known Member

    Joined:
    Jan 14, 2009
    Member:
    #12578
    Messages:
    5,467
    Gender:
    Male
    First Name:
    Ross
    Kelowna b.c canada
    Vehicle:
    2012 DCLB
    Grillcraft mx black upper and lower BHLM with Gloss black 265 70 17 bfg a/t center console light mini mag mounted in center console debadged bed lights 35W 5000k HID's
    A locker would be of no help to him, because with the locker in, once you start to slip, game over, and you slip easier in snow with it on. I believe the OP is talking about daily driving in snow, not offroading.
     
  6. Jan 17, 2010 at 3:08 PM
    #6
    MowTaco

    MowTaco [OP] Well-Known Member

    Joined:
    Sep 9, 2009
    Member:
    #22530
    Messages:
    3,820
    Gender:
    Male
    First Name:
    Matt
    South Dakota
    Vehicle:
    03 GMC Sierra
    I'd like something like an Ox locker, a manually actuated locker I can engage really quick just to get moving and then disengage once I'm started.
    I would love to have a real locker, so I wouldn't have to bust out the tow rope as often. I would go with one of the lunch box lockers, but from what I've heard they are extremely unsafe in snow and ice. I don't believe anyone makes a manual locker for my truck (axle code A02A, 3.58 ratio and 7.5" ring gear). If I'm missing something, someone please let me know.
     
  7. Jan 17, 2010 at 7:36 PM
    #7
    wolfgang123

    wolfgang123 Well-Known Member

    Joined:
    Jul 7, 2009
    Member:
    #19369
    Messages:
    1,425
    Gender:
    Male
    First Name:
    Skyler
    Statesboro, GA
    Vehicle:
    1997 TACOMA - 4x4
    you will be going through brakes like crazy. if you have open diffs this wont work.
     
  8. Jan 18, 2010 at 4:20 AM
    #8
    Janster

    Janster Old & Forgetful

    Joined:
    Mar 25, 2007
    Member:
    #1138
    Messages:
    14,254
    Gender:
    Female
    First Name:
    Jandy
    Lancaster, PA
    Vehicle:
    2016 GMC Canyon SLT w/ LineX and....
    Too much work for something you'll very rarely use.

    Sounds like its time for you to trade or sell that 5 lugger and get a 4WD.
     
  9. Jan 18, 2010 at 4:22 AM
    #9
    jandrews

    jandrews Carolina Alliance Southwest Region Ambassador

    Joined:
    Jun 7, 2009
    Member:
    #18122
    Messages:
    12,180
    Gender:
    Male
    Vehicle:
    '09 FourDubDee TRD OR
    A-TRUCK, Fat Kid in the Bed, Custom Pinstriping, Ported and Polished Muffler Bearing, Hi-Performance Bed Mat
    I thought this thread was about drugs.
     
  10. Jan 18, 2010 at 6:08 AM
    #10
    Brunes

    Brunes abides.

    Joined:
    May 31, 2008
    Member:
    #7011
    Messages:
    17,641
    Gender:
    Male
    First Name:
    Rotorhead
    DC or New Jersey - Depends on the day....
    Vehicle:
    08 Red/Graphite and Satin Black
    Inside: Tint, Wet Okole 1/2 Piped Red/Black Covers, Black Weathertech Digital Fit Mats, URD Short Throw w/ TWM Weighted Knob, USA Spec iPod adapter. Outside: 4300K Retro w/ Angel Eyes and Red Shrouds, 5000K Blazer Fog Light Retrofit, Debadge, Bed Locking Handle, Satin Black Rims Performance: TRD/Steigmeier Blower w/ 2.7 Pulley. 668 Injectors and 320 LPH AEM Fuel pump. URD UCON and 7th Injector. DTLT Headers, URD Y-Pipe, Wicked Flow Muffler. Suspension: Both: OME Shocks Front: 886X's and TC UCAs Rear: Dakars Armor: Relentless Front Bumper Relentless High Clearance Rear w/ Tire/Rotopax Swing Out Relentless Front, Mid, and TCase skids BAMF Diff Skid Recovery and Spares: Fullsize Spare Tire 2x2 gal Rotopax 1x1 gal Rotopax 1x1 gal Water Rotopax Warn 9.5XP-S Winch Hi-Lift Extreme 60" Ironman Off-Road Recovery Kit
    Yeah...Differential braking and line locks are not impossible to build and work with. But if you are worried about driving on snow- You are crazy to try to add MORE things to do with your hands while the truck spins.
    Work it out to either trade and get a truck that has the parts you want or find the aftermarket parts for your truck.

    Also keep in mind- Folks drove in snow with out LSDs for YEARS...Jus saying...
     
  11. Jan 18, 2010 at 9:28 AM
    #11
    MowTaco

    MowTaco [OP] Well-Known Member

    Joined:
    Sep 9, 2009
    Member:
    #22530
    Messages:
    3,820
    Gender:
    Male
    First Name:
    Matt
    South Dakota
    Vehicle:
    03 GMC Sierra
    I guess I'll chalk this one up to "Matt's stupid Ideas that will never work".
    It seems like that file is getting bigger and bigger...
     
  12. Jan 18, 2010 at 9:48 AM
    #12
    EnolaGaia

    EnolaGaia Well-Known Member

    Joined:
    Sep 9, 2006
    Member:
    #9
    Messages:
    1,129
    Gender:
    Male
    Midwest USA
    Vehicle:
    '01 & '04 S-Runners
    01 SR: Double Cab conversion, S/C, lowered.
    OK ... Now that the laughing has subsided, let me tell you how you might actually try this (not that I'm recommending such a thing, mind you ...) ...

    You have a 2004 5-lug Tacoma with standard ABS. 2004 was the only pre-2005 model year in which Toyota offered a VSC / TRAC (with 'Auto LSD') system for the Tacoma. It was only offered as an option on V6 PreRunner and 4X4 XtraCabs and Double Cabs. Like the later traction system(s), this one basically added a bunch of sensors and controllers to manipulate the ABS system for the purpose of traction control.

    In *theory* it might be possible to transplant all the 2004 VSC / TRAC apparatus from a donor PreRunner into your 5-lug XtraCab and monkey with it until it actually works as advertised. I can't tell what (if any ...) differences there were between the equipment used on 2WD PreRunners and 4X4 models, so I can't tell for sure whether there's a chance of doing such a transplant from a 4X4 donor truck.

    However ... I suspect that by the time you locate all the (relatively rare) donor parts, do the research, do the swap, and do the experimentation to get it all working, you'd have spent a lot more money than you would have spent simply installing an aftermarket LSD or doing an LSD-equipped Supra axle swap.
     
  13. Jan 18, 2010 at 2:38 PM
    #13
    MowTaco

    MowTaco [OP] Well-Known Member

    Joined:
    Sep 9, 2009
    Member:
    #22530
    Messages:
    3,820
    Gender:
    Male
    First Name:
    Matt
    South Dakota
    Vehicle:
    03 GMC Sierra
    I'm still considering one of the auto lockers. I would like to take mine mudding with a couple buddies. For anyone that has one- is it completely impossible to recover once the rear breaks loose (esp. in snow?), or is it something you could get used to and save it. I figure if drifters usually run lockers, there's gotta be a way to do it. It's not like we have snow on the ground all winter here, it's just the occasional storm.
     
  14. Jan 18, 2010 at 3:04 PM
    #14
    Werloc

    Werloc Large Member

    Joined:
    May 25, 2009
    Member:
    #17604
    Messages:
    540
    Gender:
    Male
    First Name:
    Bob
    Central, NJ
    Vehicle:
    2003 Double Cab 4X4 TRD 3.4 V6
    LOL, Yeah me too. Haven't dropped acid since the 70's.....:cool:
     
  15. Jan 18, 2010 at 3:27 PM
    #15
    pittim

    pittim mittip

    Joined:
    May 28, 2008
    Member:
    #6939
    Messages:
    16,502
    Gender:
    Male
    Vehicle:
    Respect your elder gen.
    Pink slider.
    "drifters", afaik, have LSDs in the back.

    BTW, the 05-08s had mechanial LSDs, not the brake ones that are on the 09+.
     
  16. Jan 18, 2010 at 3:45 PM
    #16
    biborado

    biborado Well-Known Member

    Joined:
    Dec 17, 2009
    Member:
    #27707
    Messages:
    96
    Gender:
    Male
    First Name:
    Stephen
    San Diego, CA
    Vehicle:
    2010 TRD Off-Road 4x4
    Not sure how well this would work on the snow, but esentially an LSD turns into an open diff when one wheel loses traction or completely comes off of the ground. So by engaging the e-brake a few clicks it gives the LSD enough resistance to do its job. Same thing for our open diffs except i dunno if you'd be able to do the braking fast enough manually. The A-trac/VSC system on the newer tacos can do it much faster than you could.


    http://www.youtube.com/watch?v=v1Dbkvgiozs
     
  17. Jan 18, 2010 at 7:32 PM
    #17
    MowTaco

    MowTaco [OP] Well-Known Member

    Joined:
    Sep 9, 2009
    Member:
    #22530
    Messages:
    3,820
    Gender:
    Male
    First Name:
    Matt
    South Dakota
    Vehicle:
    03 GMC Sierra
    Just as ABS can pump your brakes faster than you can, but some is better than none...
    Anyway does anyone have any input on the auto locker in the snow?
     
  18. Jan 18, 2010 at 7:40 PM
    #18
    dually

    dually Low and slow

    Joined:
    Jul 29, 2008
    Member:
    #8205
    Messages:
    3,113
    Gender:
    Male
    Interstate underpass
    Vehicle:
    05 Indigo 4wd Longbed
    Not as many as the 98..
    Taco+studded tires+140lbs in the bed will get you anywhere. I did that last winter and got everywhere.

    The use of the e-brake as a "lsd" has been around for years in the serious offroading community. I dont think it should be applied to daily driving lol...

    In all reality, an lsd or locker really isnt needed on these trucks unless
    1. You're actually offroading
    2. You have high horsepower and need to put it to the ground.
     
  19. Jan 18, 2010 at 7:41 PM
    #19
    PatHLC128

    PatHLC128 College.

    Joined:
    Aug 29, 2008
    Member:
    #8867
    Messages:
    1,265
    Gender:
    Male
    First Name:
    Pat
    Austin, TX
    Vehicle:
    09 TRD Off Road 4x4 AC
    OME complete 3" kit, 265/75/16 Cooper STTs, Pro Comp 7089 wheels, Shrockworks sliders, UWS Low Pro Toolbox, AFE Pro-Dry S, OEM Bedmat, Ventvisors, Husky Liners, Tint, De-badged
    yeah i definitely was expecting a cool acid trip story...
     
To Top