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Toyota Rear Diff Locker

Discussion in '1st Gen. Tacomas (1995-2004)' started by FirstTimeFirstGen, Jan 12, 2017.

  1. Jan 12, 2017 at 8:19 PM
    #1
    FirstTimeFirstGen

    FirstTimeFirstGen [OP] Less active than most

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    Not enough to have a build thread.
    So, yes, I did use the "Search" button and didn't really find what I was looking for. I was wondering if anyone could describe to be (or pictures would be really cool) on how the stock rear diff locker works. Thanks to anyone and everyone who participates.

    If you're feeling up to it, additional questions: Do people run the stock locker on "crawlers?" Does it have any common problems? How far can it be pushed (asphalt with large tires?) without breaking?
     
  2. Jan 12, 2017 at 10:18 PM
    #2
    mechanicjon

    mechanicjon They call me "Jonny Stubs"

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    Hopefully this helpsELocker.jpg
     
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  3. Jan 12, 2017 at 10:25 PM
    #3
    Matic

    Matic The "OFG" Baby!!!

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    Open diff- the wheel that is slipping gets the power. Example: youre on the trail and your passenger rear wheel is off the ground. Guess which wheel gets the power? Yes, the wheel in the air.

    Limited slip diff- the wheel that "grips" gets the power. Example: same scenerio except the driver rear wheel gets the power.

    Locker- both wheels get power under load.
     
  4. Jan 13, 2017 at 4:32 AM
    #4
    cruiserguy

    cruiserguy Well-Known Member

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    I've only seen a couple failures of the OEM electric locker. They were both on fairly extreme modded 80 series cruisers (same e-locker design). On one, the sleeve that moves and grabs both axles for some reason tore up the splines on axle and busted. I tend to think it was more of operator error, but it wasn't me, so who knows. The design is actually pretty awesome. Especially if peep would at least engage the locker every few months to keep the actuator lubed and moving.
     
  5. Jan 13, 2017 at 4:34 AM
    #5
    cruiserguy

    cruiserguy Well-Known Member

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    Locked on asphalt, in general, could lead to problematic situations.
     
  6. Jan 13, 2017 at 8:40 AM
    #6
    FirstTimeFirstGen

    FirstTimeFirstGen [OP] Less active than most

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    Not enough to have a build thread.
    this is what I was looking for. Thank you.
     
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  7. Jan 13, 2017 at 8:41 AM
    #7
    FirstTimeFirstGen

    FirstTimeFirstGen [OP] Less active than most

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    Not enough to have a build thread.
    thank you for the basic differential definitions lol
    I am a mechanic (I work on for diesels specifically) so this wasn't new knowledge, but thanks for the effort and reply
     
  8. Jan 13, 2017 at 8:43 AM
    #8
    FirstTimeFirstGen

    FirstTimeFirstGen [OP] Less active than most

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    Not enough to have a build thread.
    thank you for your posts. Good to know that use helps keep it freed up. I didn't know if it was a weak fork or pin style and was trying to use it sparingly. Since it looks pretty stout I think ill lock up whenever I'm off the pavement
     
  9. Jan 13, 2017 at 9:29 AM
    #9
    cruiserguy

    cruiserguy Well-Known Member

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    Awesome man, happy to have another experienced wrench around here to go with others. Your guys input is valuable for the DIY guys. Stick around, if you can(not today but you know, long term with the site, lol) ....
    Diesel mechanic huh? You got a line on a Hino engine I can sink into a first gen Tundra?? :D
     
  10. Jan 13, 2017 at 10:35 AM
    #10
    FirstTimeFirstGen

    FirstTimeFirstGen [OP] Less active than most

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    Not enough to have a build thread.
    Lol. I used to work on Hinos but I haven't been at that stealership in a few years. I can put feelers out though if you truly are interested.

    Looking for one of the inline 4s? I don't think a inline 6 will ever fit in a tundra lol
     
  11. Jan 14, 2017 at 6:40 AM
    #11
    ghs57

    ghs57 Well-Known Member

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    Question: Can an E-locker be added to a rear diff? Or do you need to swap diffs? I've been stuck a few times with my non-locker 4wd.
     
  12. Jan 14, 2017 at 7:46 AM
    #12
    cruiserguy

    cruiserguy Well-Known Member

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    Technically yes, I believe it can be done. It would require complete disassembly of the rear end, tapping threads prolly, swapping a bit of parts. I've seen peep do it on 80 series land cruisers, because they had the optional front and rear lockers. It's a very involved project, but possible.
     
  13. Jan 14, 2017 at 8:09 AM
    #13
    ghs57

    ghs57 Well-Known Member

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    Pretty much stock right now
    A swap sounds easier, including the wiring.
     
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