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Front Diff Drain Plug SHEARED?!?

Discussion in '1st Gen. Tacomas (1995-2004)' started by Treqi's Taco, Dec 22, 2020.

  1. Dec 22, 2020 at 8:22 AM
    #1
    Treqi's Taco

    Treqi's Taco [OP] Member

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    So some point along the way my front diff plug got replaced with a regular bolt (not 12mm Hex). It looks like it used to have a magnet in it as there is a spot for one to go. No longer is there a magnet in the old bolt and when I went to replace the bolt it sheared on the first turn after hand tight. Luckily I was able to get everything out pretty easily.

    The bolt that I replaced it with was just a regular M14x1.50 and I'm looking to go pick up a new OEM bolt from the dealer today. I spoke with my uncle who is a fuel system engineer and he said not to be too worried about the magnet in the diff and to just make sure I get another magnetic bolt to clean anything out.

    Anyways, I'm just looking for a whole host of opinions so lay em' on me guys

    PXL_20201222_161629465.jpg
     
  2. Dec 22, 2020 at 8:25 AM
    #2
    PennSilverTaco

    PennSilverTaco Encyclopedia of useless information...

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  3. Dec 22, 2020 at 8:25 AM
    #3
    PennSilverTaco

    PennSilverTaco Encyclopedia of useless information...

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  4. Dec 22, 2020 at 8:29 AM
    #4
    MikeWH

    MikeWH Well-Known Member

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    Replace with the Lexus drain plug, I’ll see if I can get you the part number as I just posted it in another post
     
  5. Dec 22, 2020 at 8:32 AM
    #5
    MikeWH

    MikeWH Well-Known Member

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    Here you go-
    Get a Lexus plug for the front diff so you don't have to use allen keys. 90341-24016 on Lexuspartsnow.com
    Also you should replace the crush washers each time. I had a plug I almost strip, there was no crush washer on it. Every drain/fill plug on our trucks (except oil) has a crush washer, and it’s considered one time use. In reality you can get a couple uses out of one, but eventually you have to tighten the plug so much that what you are experiencing happens.
     
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  6. Dec 22, 2020 at 8:34 AM
    #6
    Black DOG Lila

    Black DOG Lila Well-Known Member

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  7. Dec 22, 2020 at 8:35 AM
    #7
    MikeWH

    MikeWH Well-Known Member

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    I see the forum automatically added an Amazon link. Beware, I’m not sure that is an OEM part
     
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  8. Dec 22, 2020 at 8:41 AM
    #8
    Treqi's Taco

    Treqi's Taco [OP] Member

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    Base!!
    I think this might have been what happened, there wasn't a crush washer on it when I did the fluids with my CV joints and I was much less experienced then.

    what are your thoughts about the potential magnet floating around in the differential?
     
  9. Dec 22, 2020 at 8:54 AM
    #9
    Black DOG Lila

    Black DOG Lila Well-Known Member

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    Magnet probably ground to dust.
    I'd drag a magnet through dirty oil to check for it.
     
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  10. Dec 22, 2020 at 8:59 AM
    #10
    MikeWH

    MikeWH Well-Known Member

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    I had the same thing on a new to me front diff, drain plug was tight as hell.

    magnet would probably be attached to the side of the diff if it’s still in one piece. If it ground up...I’d add a magnetic drain plug to get as much of it back as possible. I know they aren’t used as much in industry, however I think on a truck that’s used hard, a magnetic drain plug is a no brainer. I pull stuff off of mine every time I do an oil change.
     
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  11. Dec 22, 2020 at 9:18 AM
    #11
    Taco critter

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  12. Dec 22, 2020 at 9:36 AM
    #12
    Treqi's Taco

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    Base!!
    Thank you guys, I don't think I'll be messing around with my gear oil as this will be the third time in two days that I will have drained the front differential. Going to pick up the magnetic differential plug right now.
     
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  13. Dec 22, 2020 at 1:43 PM
    #13
    Treqi's Taco

    Treqi's Taco [OP] Member

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    @MikeWH yikes! I went in the dealership and the OEM plug with magnet is a M18x1.5 plug. Mine is a M14 plug, does anyone here have an idea of whats going on with my differential?

    The fill plug is stock and the sticker on the shaft to the passenger looks legit? So the passenger side of the housing is the only thing that looks different.

    What a mess for what should have been a quick drain and fill.

    PXL_20201222_202511295.jpg
     
  14. Dec 22, 2020 at 3:15 PM
    #14
    Wyoming09

    Wyoming09 Well-Known Member

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    It is a Toyota you find strange and interesting parts that got swapped in.

    Possible you got the wrong part it happens till you get them trained .
     
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  15. Dec 22, 2020 at 5:39 PM
    #15
    MikeWH

    MikeWH Well-Known Member

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    Wow! Yeah that looks like the correct axle, down to the date sticker and oil sticker, looks the same as mine. Can you post a pic of the drain plug area?

    Did they strip it and put a helicoil type sleeve or something in? If you wire brush near the drain plug can you see an insert in place?
     
  16. Dec 22, 2020 at 6:29 PM
    #16
    Treqi's Taco

    Treqi's Taco [OP] Member

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    @MikeWH
    Here you go I don't think it's an insert... While the bolts line up the housing around them doesn't seem perfect. I'll grab some better pictures of the full thing in the morning. PXL_20201223_022436062.jpg PXL_20201223_022424564.jpg
     
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  17. Dec 22, 2020 at 6:32 PM
    #17
    JJ04TACO

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    If the threads check out, I like the idea of the Lexus bolt. That said, When I do my diff fluids I be sure to be very careful not to over tighten that bolt.
     
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  18. Dec 22, 2020 at 6:36 PM
    #18
    Treqi's Taco

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    @JJ04TACO It's looking like they're not so I'm going to get a custom one from Gold Plug. I just went one hard push tight with a shorty ratchet, The torque spec on that thing calls for like 48 ftlbs.

    Don't worry, I'm a girl I can't wrench too hard without the right tools.
     
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  19. Dec 22, 2020 at 6:41 PM
    #19
    1997tacomav6

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    Just get a Lexus drain plug with the magnet

    F7107700-F853-42DA-A3C8-F9FB6F7934C1.jpg
    903F7E37-B10D-4535-B83A-F022DF06A506.jpg
     
  20. Dec 22, 2020 at 6:51 PM
    #20
    JJ04TACO

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    Lol I wasn't implying you went crazy with the torque :D. Sounds like you just got unlucky. And trust me, even us guys can't wrench too hard without the right tools, or learned not to. :) #bustedknuckles

    Just so you know, the drain plugs on the front diff call for 20 ft/lb's. The rear is 36 and the transfer case is 25. Per my Haynes book. Good luck fixing it up! :thumbsup:
     
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