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02 Tacoma gear oil

Discussion in '1st Gen. Tacomas (1995-2004)' started by ChanMan, Aug 13, 2016.

  1. Aug 13, 2016 at 7:39 AM
    #1
    ChanMan

    ChanMan [OP] Active Member

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    Hi everyone. I have a 2002 Tacoma 2.7 4 cyl 5 speed. It has 150,000 miles and the gear oil in the transmission has never been changed. 1. I didn't know if it needed it yet or not. And 2. If so, how do you do it? I've seen a couple videos, but they were all for automatic transmissions. Any help would be appreciated, thanks.
     
  2. Aug 13, 2016 at 9:56 AM
    #2
    Holy schmidt

    Holy schmidt Well-Known Member

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    Be careful as most of those torque specs on drain plugs are dry not wet. You can over torque them easily i prefer to just snug then.
     
  3. Aug 13, 2016 at 10:05 AM
    #3
    neatoneto

    neatoneto Well-Known Member

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    Very easy to do. Instructions are in the first comment.
     
  4. Aug 13, 2016 at 11:13 AM
    #4
    Xyphon112

    Xyphon112 Well-Known Member

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    I used Redline MT90 when I did mine. Gear shifts are smoother and it was a really easy oil change. Do it and you won't regret it. Very easy.
     
  5. Aug 13, 2016 at 7:12 PM
    #5
    Tour991

    Tour991 Supplier of used parts

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    Do you recommend the mt-90 in front and rear differentials as well?
     
  6. Aug 13, 2016 at 8:44 PM
    #6
    DustStorm4x4

    DustStorm4x4 BBC 2020

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    I don't think you can use it in the diffs. Could be wrong.
     
  7. Aug 13, 2016 at 8:45 PM
    #7
    DustStorm4x4

    DustStorm4x4 BBC 2020

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  8. Aug 14, 2016 at 5:29 AM
    #8
    ChanMan

    ChanMan [OP] Active Member

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    Thanks for all the help yall. I've never had any problems out of my truck and just wanted to keep the maintenance up. Should be an easy thing to do.
     
  9. Aug 14, 2016 at 6:01 AM
    #9
    cruiserguy

    cruiserguy Well-Known Member

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  10. Aug 14, 2016 at 6:14 AM
    #10
    Yobnoc

    Yobnoc New Member

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    Might as well do the diff's and transfer case while your under there.

    I just did this and used new crush washers. What I didn't know was that they are different.

    Tranny and Transfer case fill and drain: p# 90430-A0003

    Rear diff fill and drain/front diff fill: p# 12157-10010

    Front diff drain: p# 90430-24003
     
  11. Aug 14, 2016 at 6:27 AM
    #11
    ChanMan

    ChanMan [OP] Active Member

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  12. Aug 14, 2016 at 6:29 AM
    #12
    cruiserguy

    cruiserguy Well-Known Member

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    Nice on the OEM part numbers. Maybe we can get a mod to do a sticky with an OEM parts number list?
     
  13. Aug 14, 2016 at 7:00 AM
    #13
    Yobnoc

    Yobnoc New Member

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    No you do not have to use synthetic.

    75w90 gl-4 in the tranny and Transfer case

    75w90 gl-5 in the diff's

    See your manual about how often to change and fill amounts.

    Search YouTube for videos for locations of fill and drain plugs.
     
  14. Aug 14, 2016 at 7:04 AM
    #14
    Yobnoc

    Yobnoc New Member

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    Link to good video. Hope it works.
     
  15. Aug 14, 2016 at 7:05 AM
    #15
    ChanMan

    ChanMan [OP] Active Member

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    Ok, thanks again. I'll do like you said and look on YouTube so I can watch it be done.
     
  16. Aug 14, 2016 at 7:41 AM
    #16
    cruiserguy

    cruiserguy Well-Known Member

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    Nope, you sure don't have to use synthetic. Not sure on the frequency of drain and fill that Toyota states. Probably 60k? I'm sure someone has an owners manual here, it's prolly online as well. When doing the diffs and transfer case, pull the fill plugs first, just because sometimes folks can't get that one out but they can get the drain plug out. Then they're stuck with an empty diff with no way to fill it.
     

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