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Differential LSD with lock?

Discussion in 'Technical Chat' started by DARBADARBZ, Oct 5, 2023.

  1. Oct 5, 2023 at 3:29 PM
    #1
    DARBADARBZ

    DARBADARBZ [OP] Well-Known Member

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    My TRD Off Road Prerunner has an open dif with a dif locker. Do I have any option to replace it with a LSD with a lock as well? I'm tired of not being able to put power down and doing wimpy 1 wheel burnouts.
     
  2. Oct 5, 2023 at 3:38 PM
    #2
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    Do you mean open with electronic locker (abs controlled)?

    Interesting question. I dont see why not
     
  3. Oct 5, 2023 at 3:41 PM
    #3
    DARBADARBZ

    DARBADARBZ [OP] Well-Known Member

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    Like I'm trying to see if I can have positraction. And then press a button and lock the differential if I need it.
     
  4. Oct 5, 2023 at 4:06 PM
    #4
    TnShooter

    TnShooter The TacomaWorld Stray

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    Not really.
    The closest you will get is a TrueTrac style differential.
    It will be a lot better than an Open Diff, but won’t be “locked” on demand like the E-Locker.
    The TrueTrac is self locking, so it will take a bit to get it locked.

    BTW, I know exactly what you are talking about.
    Us 05-08 guys are open or locked. We didn’t get the Auto-LSD.
     
  5. Oct 5, 2023 at 8:20 PM
    #5
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    09 & up... is lsd done by applying brake to loose wheel or actual electronic/mechanical diff lock?
     
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  6. Oct 5, 2023 at 8:25 PM
    #6
    TnShooter

    TnShooter The TacomaWorld Stray

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    09+ use the brakes to simulate an LSD (even the E-locker trucks)
    All 09+ trucks are open differential.
     
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  7. Oct 5, 2023 at 8:53 PM
    #7
    pastoreater

    pastoreater doesn't know

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    Do you know if this is the way 4runners are also. Open diff for 2wd and 4wd with brake induced autolsd / atrac.
     
  8. Oct 5, 2023 at 9:35 PM
    #8
    TnShooter

    TnShooter The TacomaWorld Stray

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    I have no idea?
    Google says all 5th gen 4Runners have Open differential and operate just as the Tacoma does.
    Maybe @Empty_Lord or @Bishop84 will know “for sure”
    You can’t always trust Google
     
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  9. Oct 5, 2023 at 9:41 PM
    #9
    Bishop84

    Bishop84 Well-Known Member

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    No 4runner has had traction enhancers on their differentials. The diesel hilux used to have it.

    5th gen is open with simulated lsd or rear locker.
     
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  10. Oct 5, 2023 at 9:43 PM
    #10
    Kwikvette

    Kwikvette Well-Known Member Vendor

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    4 run, 2 don't
    Unless they're confusing things with ATRAC?

    Really, just having a rear e-locker is the bees knees. Why change it?
     
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  11. Oct 5, 2023 at 9:54 PM
    #11
    pastoreater

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    @Kwikvette the confusuin is in part because T says the 4r has an automatic lsd, and there is no further mechanical info given. Also, did you read the first post twice? Post 4?
     
  12. Oct 5, 2023 at 10:11 PM
    #12
    TnShooter

    TnShooter The TacomaWorld Stray

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    What year 4Runner are you asking about?
    Just curious.

    Further research says the only the 2WD T4R uses a brake actuated LSD.
    The 4WD T4R uses the center diff for “LSD”.
     
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  13. Oct 5, 2023 at 10:12 PM
    #13
    Kwikvette

    Kwikvette Well-Known Member Vendor

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    4 run, 2 don't
    My post wasn't in response to the OP, more about the other members.

    LSD would make sense for the OP though for sure if he doesn't want a one wheel peel.
     
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  14. Oct 5, 2023 at 10:21 PM
    #14
    pastoreater

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    edit3, what a mess of a post. Those vids below are for older 8" diffs, and newer 4runners have 8.2" rears apparently. Idk about tacomas. More reading to do.

    Any of them, with retrofit questions following:cool:

    edit. Peeked on youtube.

    https://m.youtube.com/watch?v=OgSoTDGifno&pp=ygULNHJ1bm5lciBsc2Q=


    https://m.youtube.com/watch?v=CKDbx5gdz58&pp=ygULNHJ1bm5lciBsc2Q=

    yeah that's a worm drive style and a clutch style available to drop/swap in to 8" axles it seems. I am gonna dream real good tonight. OP I don't know how the locker is set up but I don't think you can get what you want. Maybe with some butchery you can put your locker up front and roll lsd rear (no idea status on that one).
     
    Last edited: Oct 6, 2023
  15. Oct 6, 2023 at 8:44 PM
    #15
    Sprig

    Sprig Well-Known Member

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    If I understand this correctly OP you are saying, when you operate your vehicle recklessly you want a rear locker so you can peel rubber with both rear tires instead of just one tire. You are asking for our help to assist you in your reckless driving endeavors. Just clarifying if I’m understanding you correctly? Are your parents aware of your driving behavior and habits?
     
  16. Oct 6, 2023 at 8:49 PM
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    TnShooter

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    Yeah, I over looked that part.
    The only reason I know what he’s referring to is because I have an 07’ and pulling/backing a trailer in wet grass can be a pain in the ass. Once the wheel spins, it spins. If your lucky, you don’t damage the lawn too bad. I just stick it in 4H now and keep the turns at a minimum. Or park in the road……
     
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  17. Oct 6, 2023 at 10:10 PM
    #17
    DARBADARBZ

    DARBADARBZ [OP] Well-Known Member

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    That's assuming a lot, I live in a high rain and snow environment in a car with no 4wd
     
  18. Oct 6, 2023 at 10:17 PM
    #18
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    So E-locker is additionally a mechanically locking differential
     
    Last edited: Oct 7, 2023
  19. Oct 7, 2023 at 7:35 AM
    #19
    Sprig

    Sprig Well-Known Member

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    I assume nothing. You state you are tired of doing one wheel burnouts, meaning you want to do macho 2 wheel burnouts.
    Perhaps it was poorly worded, or you didn’t mean what you said, or you need to improve your prose, or more information would have clarified what and why you are asking. In any event it’s not worth pursuing, get yourself a Detroit locker and go for it.
     
  20. Oct 10, 2023 at 9:19 PM
    #20
    6 gearT444E

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    Swap in an older 8.4” axle housing and differential, replace the clutch packs, slap an arb in there.
     

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