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LSD vs Auto LSD

Discussion in '2nd Gen. Tacomas (2005-2015)' started by rcastle57, Oct 26, 2010.

  1. Aug 29, 2012 at 4:31 PM
    #21
    Milowilli

    Milowilli Milowilli

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    Auto LSD is crap!!! We installed a TRD mechanical LSD along with rear disc brakes in our truck. Auto LSD uses rear drum brakes which do not hold in mud and slush and only last 2 to 3 months before the liners are totally gone....making Auto LSD totally useless.
     
  2. Aug 29, 2012 at 10:56 PM
    #22
    JKD

    JKD Well-Known Member

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    I would be concerned about the manual LSD interfering with the operation of VSC, if the truck is trying to brake one or the other rear wheel to avoid a skid.
     
  3. Aug 29, 2012 at 11:08 PM
    #23
    ScreamingTaco

    ScreamingTaco Huge Member

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    Two year old thread is two years old...
     
  4. Aug 29, 2012 at 11:08 PM
    #24
    David K

    David K Well-Known Member

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    Wondering why you have not been happy with the electronic brake system or the drum brakes?

    I have had rear drum brakes on 3 Tacomas totaling about 300,000 miles and have never had them fail or need to be replaced. The big semi trucks use drum brakes... they have a much larger braking surface area than disc pads do. Disc brakes are just easier to replace and service.

    Far too many here have stated their AUTO LSD works great for getting up boat ramps or other slippery surfaces in 2WD... So, maybe there is something not working on just YOUR AUTO LSD??? Could it be???

    Sorry your Tacoma wasn't working as good!
     
  5. Aug 29, 2012 at 11:25 PM
    #25
    Gearheadesw

    Gearheadesw Well-Known Member

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    In 4 hi with low traction available, the power is cut in the engine. Going up deep sand hills with the pedal floored, first gear, searching for traction, then... buurr, revs come down power decreases forward momentum stops. No tire spin no nothing. Back up turn off all nannies, zing right up the hill we go. Tell me how that system works great.
     
  6. Aug 30, 2012 at 12:53 AM
    #26
    romeo

    romeo Wombat

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    Do you have pictures of the process and maybe even a price sheet of how much it cost to do the switch from drum to disk?
     
  7. Aug 30, 2012 at 5:56 AM
    #27
    Milowilli

    Milowilli Milowilli

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    I got the kit from here.


    http://tundraracing.com/rbck.htm
     
  8. Aug 30, 2012 at 6:09 AM
    #28
    Milowilli

    Milowilli Milowilli

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    I think you need an education..We use these trucks OFF ROAD!!!! A trip in the interior could be as much as 600 miles. The road is full of pot holes filled with water requiring hundreds of brake applications. The sandy slush grit mud gets between the liner and drum and is crushed..grinding away the liner and drum. At replacement the drum is so badly worn it has to be trashed. It's a job in itself to separate the drum from the liners as a lip develops due to wear and the liners get stuck behind them. You have to go through the tedious process of trying to back off the liner tension so it clears the lip to be removed. Disc brakes wipe instead of crushing and grinding like drum brakes do so they last much longer and are far more reliable!!!
    The Auto LSD becomes useless when drum brakes become wet and worn.
    I have changed rear brakes in as little as 2 trips on the jungle.
    Cheers.
     
  9. Aug 30, 2012 at 6:10 AM
    #29
    Milowilli

    Milowilli Milowilli

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    No issues here..works almost like a rear locker with Auto LSD engaged.
     
  10. Aug 30, 2012 at 7:32 AM
    #30
    Milowilli

    Milowilli Milowilli

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    Imagine Auto LSD in this mess...that is abrasive muddy clay ..it eats drum brakes for lunch and dinner!!!
    [​IMG]
     
  11. Aug 30, 2012 at 7:38 AM
    #31
    ScreamingTaco

    ScreamingTaco Huge Member

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    It is in the 2012s.

    H4 TRAC on = Engine retarder and limited slip light
    H4 TRAC off (press button) = Full engine power with strong limited slip.
    H4 TRAC off (hold button) = Full engine power with open diffs and no VSC.

    Basically, TRAC functions the same in H2 and H4 now.

    Myself, after 5 years of driving with the mechanical LSD that was in the early Sports I can say it performs awesome both on and off road... except in the winter. The rear end tends to wash out on slippery surfaces, which is always interesting at highway speeds.


    (edit: nevermind... When I first checked Milowilli's profile I was pretty sure it said he was in a 2012, but now it says he's in a 2005.... Which is even more confusing since a 2005 doesn't have any traction controls)
     
  12. Aug 30, 2012 at 8:54 AM
    #32
    BlueT

    BlueT Well-Known Member

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    You not gonna win with David K he is stuborn as mule and he thinks we all live in California like conditions :D
     
  13. Aug 30, 2012 at 9:12 AM
    #33
    MonkeyProof

    MonkeyProof Power Top

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  14. Aug 30, 2012 at 9:29 AM
    #34
    Milowilli

    Milowilli Milowilli

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    I guess u didnt read my post below..Auto LSD uses the drum brakes to stop the spinning wheel. In our Application Drum brakes sometimes last one trip in the Jungle before they are totally worn out and need replacing. The road is full of muddy sandy waterholes that eat up drum brakes for lunch!!! Drum brakes operate on the crush and grind principal ..crushing and grinding anything that gets between the liner and drum. Wet drom brakes are useless so no Auto LSD functionality. Disc brakes wipe so they are more reliable and last much longer. And by the way i Built and modified a 2010 Tacoma and drove it in all sorts of conditions and the Mechanical LSD is Far superior. I installed a Mechanical LSD from an 05 into the 2010 with Auto LSD and also converted it to Disc Brakes.
    Trucks i build are not weekend warriors..they run into the Jungle several times a week and have to stand up to the severe road conditions. I have been doing this for years so i know what i am talking about..
    here is the 2010 build.
    http://www.tacomaworld.com/forum/2n...xtreme-tacoma-build-guyana-south-america.html
     
  15. Aug 30, 2012 at 9:53 AM
    #35
    Milowilli

    Milowilli Milowilli

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    http://pgh-offroad.com/forum/showthread.php?17512-Rear-drum-brakes-mud.-.-.

    http://forums.off-road.com/jeep-short-wheelbase/105656-darn-mud-drum-brakes-dont-mix.html
    http://books.google.com/books?id=X9...&hl=en#v=onepage&q=drum brakes vs mud&f=false

    Following are typical pros & cons for both disc and drum brakes:

    Drums
    Pro - Less expensive since they're already stock on Broncos
    Pro - Drums work better then discs as emergency brakes
    Con - They stop poorly when wet and can get clogged with mud
    Con - Stopping power can fade with repeated hard braking
    Con - Larger tires

    Discs
    Pro - More consistant, straight line stopping power
    Pro - Dissipate heat better to stay cooler
    Pro - Less affected by water or mud
    Pro - Easier to maintain and faster to replace pads then shoes
    Con - More expensive to install (but maintenance costs should be less)

    Most people will agree that discs are better than drums. However, stock drum brakes can be effective if they're in good working order and properly adjusted. Typically when people upgrade to disc brakes they're replacing worn out drums, so they see a vast improvement and are quick to credit their new disc brakes. Just keep in mind that when someone raves about their new disc setup some of it is due to simply having new parts. *
     
  16. Aug 30, 2012 at 10:22 AM
    #36
    Milowilli

    Milowilli Milowilli

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    I shouldn't realy bash Auto LSD but for hardcore Toyota users like me it's not the way to go sorry!!

    [​IMG]
    [​IMG]
     
  17. Aug 30, 2012 at 10:26 AM
    #37
    MonkeyProof

    MonkeyProof Power Top

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    I hate mud
     
  18. Aug 30, 2012 at 10:52 AM
    #38
    Milowilli

    Milowilli Milowilli

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    Haaa where we drive it's a way of life if you want to get to your destination!!
     
  19. Aug 30, 2012 at 10:02 PM
    #39
    JKD

    JKD Well-Known Member

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    Mine is 2wd, so I know the system works a bit differently, but...why would you be in sand or mud with TRAC on, when you could have A-LSD?
     
  20. Aug 31, 2012 at 11:35 AM
    #40
    shemp

    shemp Well-Known Member

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    ... right.
    I don't think your truck is intended for that kind of use. You might be better off with one of these;
    [​IMG]
     
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