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Vibration when accelerating from dead stop and turning

Discussion in '1st Gen Tundras (2000-2006)' started by 1st Gen Yota Guy, Mar 24, 2020.

  1. Mar 24, 2020 at 2:39 PM
    #1
    1st Gen Yota Guy

    1st Gen Yota Guy [OP] New Member

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    Hey everyone,

    My 2002 tundra 4wd has developed a strange vibration. This only happens when I accelerate from a dead stop while turning, never when I accelerate going straight forward. It seems to be the worst when turning to the left and only happens when it’s a sharp turn. It also doesn’t seem to do it at low speeds, like turning into a parking space. The things I have checked so far:

    - it definitely isn’t locked in 4wd.
    - it isn’t tires rubbing.

    It feels like it’s coming from the rear end. Hoping it’s not a serious issue with the rear end, but have a feeling it could be.

    Anyone else have this issue and figure out what’s causing it? I’ve done quite a bit of searching and haven’t found anyone else with the exact same issue. Thanks in advance!
     
  2. Mar 24, 2020 at 3:47 PM
    #2
    CodyP

    CodyP New Member

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    When was the rear diff fluid last changed?
     
  3. Mar 24, 2020 at 3:51 PM
    #3
    1st Gen Yota Guy

    1st Gen Yota Guy [OP] New Member

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    October 2019 I changed the rear diff fluid and pinion seal. It had a little bit of a leak and the new seal took care of that.
     
  4. Mar 24, 2020 at 3:59 PM
    #4
    CodyP

    CodyP New Member

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    No metallic flakes?
     
  5. Mar 24, 2020 at 4:02 PM
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    1st Gen Yota Guy

    1st Gen Yota Guy [OP] New Member

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    Nope, the fluid definitely needed changed, but no metal flakes.
     
  6. Mar 24, 2020 at 5:24 PM
    #6
    PCJ

    PCJ New Member

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    Did you use a new crush sleeve and take a bearing rolling torque reading before changing the seal and reset the rolling torque to the same specs. If not you may have damaged the pinion gear bearings.
     
  7. Mar 24, 2020 at 6:49 PM
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    MS22

    MS22 New Member

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    I had the same thing happen to me in my 02 with a limited slip. Don't say "LSD" or you will get some videos from members that will make you have a flashback even if you never tried acid. I was set straight LOl. Anyways I changed out the rear diff fluid with Lucas 80-90 heavy duty (recommended by a forum member) that comes with a limited slip additive and all was good. No more chatter. Good luck and hopefully this is all you need.
     
    bmf4069 likes this.
  8. Mar 24, 2020 at 6:58 PM
    #8
    1st Gen Yota Guy

    1st Gen Yota Guy [OP] New Member

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    PCJ - I did use a new crush sleeve, but didn’t take a bearing rolling torque reading. That’s a bit over my head, so hopefully I didn’t screw myself there.

    MS22 - thanks for the tip on the search terms lol. I’ll give the Lucas a try, I’ve never been disappointed by any of their products.
     
  9. Mar 25, 2020 at 2:43 PM
    #9
    1st Gen Yota Guy

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    Update: changed the fluid to the Lucas 80-90 for limited slip and the problem is 100% solved. I’m amazed there is that much of a difference, but glad that was the case. Easy and cheap fix for what I was thinking was going to end up being a major problem. Thanks guys!
     
  10. Mar 25, 2020 at 3:29 PM
    #10
    CodyP

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    Simple it was nice. Yeah it’s crazy that a small additive can make or break our rear diffs....they are more temperamental than a Beverly Hills housewife!
     
    Last edited: Mar 25, 2020
    MS22 likes this.
  11. Mar 27, 2020 at 4:57 PM
    #11
    Professional Hand Model

    Professional Hand Model A.K.A ‘Golden Hands’

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