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Carrier bearing slop

Discussion in '2nd Gen. Tacomas (2005-2015)' started by airport7, Jan 25, 2020.

  1. Jan 25, 2020 at 9:29 AM
    #1
    airport7

    airport7 [OP] Onward and Upward!

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    Recently I've been feeling a slight shudder on takeoff and have come to suspect my carrier bearing is bad. The truck has only been leveled so my angles look ok on the drive shaft. I also hear a slight groan (sounds 'rubberish' to me lol) mainly in reverse and below 5 mph. I had torn cv boots so I went ahead and installed higher angle cv's from CVJ. I was hoping the sound was my cv's but I still hear/feel it. I was under the truck today checking u joints and I noticed I have a good 1/2" of slop on my carrier bearing. I know there's a rubber buffer around the bearing so imagine a new one will have some movement to it. Just wondering if that 1/2" or so is a sign of a bad assembly or not.

    Thanks!
     
    Last edited: Jan 26, 2020
  2. Jan 25, 2020 at 3:11 PM
    #2
    ryfox0276

    ryfox0276 Well-Known Member

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    It's really not that hard to replace, I would just do it for peace of mind if anything else. Also would recommend replacing your u joints at the same time.

    Me having a regular cab I do not know much about the tolerances of the carrier bearing in a Tacoma, but 1/2" sounds like A LOT of play.
     
  3. Jan 25, 2020 at 4:06 PM
    #3
    TnShooter

    TnShooter The TacomaWorld Stray

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  4. Jan 25, 2020 at 4:36 PM
    #4
    airport7

    airport7 [OP] Onward and Upward!

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    Copy that gents. Thanks for the link. The repair doesn't look hard at all. I think I will just do it. Carrier and joints.
     
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  5. Jan 25, 2020 at 4:40 PM
    #5
    ryfox0276

    ryfox0276 Well-Known Member

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    Check out some local driveshaft shops too. I had a guy refab my shaft for $80. He replaced the u-joints, cleaned and relubed the slip yoke and coated it in some anti rust paint.
     
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  6. Jan 25, 2020 at 4:51 PM
    #6
    ryfox0276

    ryfox0276 Well-Known Member

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    But MAKE SURE you mark or otherwise note EXACTLY how the shaft is positioned before removing it. Otherwise you will have to have it rebalanced.
     
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  7. Jan 25, 2020 at 5:28 PM
    #7
    airport7

    airport7 [OP] Onward and Upward!

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    Will do!
     
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  8. Jan 25, 2020 at 7:13 PM
    #8
    JAGCanada

    JAGCanada Well-Known Member

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    I've looked for acceptable tollerances for the carrier bearing too, but haven't found anything quantifiable yet. Be interested to learn if there is an acceptable level of movement and how to measure it too.
     
  9. Jan 25, 2020 at 7:33 PM
    #9
    MurderedTacoV2

    MurderedTacoV2 Booty Admirer

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    when in doubt change it out. A fresh u joint and the carrier bearing is like 110$. Make sure you chock the rear wheels tho and the replacement is a piece of cake with a vise!
     
  10. Jan 25, 2020 at 7:35 PM
    #10
    airport7

    airport7 [OP] Onward and Upward!

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    I've never replaced a carrier bearing so I'm not sure how they look/feel 'out of the box'. I'm sure the rubber buffer has a little play in it as that's its intended purpose. I'm just not sure how much, or how the actual bearing fits in the rubber assembly. I haven't spun the drive shaft while under the truck to see how the bearing sounds. But the 'slop' seems excessive. The truck has 180k miles so I think I'll just replace the bearing assembly and u joints. My u joints seem fine as I've been greasing them since I bought the truck and they feel solid but I'll let you know what kind of shape the bearing is in after i remove it. The only indication I'm getting is a slight shudder from takeoff (mainly turning to the left from a stop sign...... I dont get the turning left) and a slight groan while in reverse. CVs and wheel bearings have recently been replaced.
     
    Last edited: Jan 25, 2020
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  11. Jan 25, 2020 at 7:40 PM
    #11
    airport7

    airport7 [OP] Onward and Upward!

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    You bet!! Got the proper tools in the shop so it'll be a breeze. Looking forward to it. Researching what else I should inspect/replace/service while I'm under there. The previous owner obviously didn't know a thing about maintenance or preventive maintenance so I've taken the truck under my wing and have brought it back to glory haha.
     
  12. Jan 26, 2020 at 5:09 AM
    #12
    Tacologist

    Tacologist Well-Known Member

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    All the symptoms on my truck led to the carrier bearing. I did all the U joint checks and they seemed good only to find the one at the differential was frozen solid.

    Replaced carrier and all U joints with greaseable ones and all is well.
     
  13. Jan 26, 2020 at 7:24 AM
    #13
    JAGCanada

    JAGCanada Well-Known Member

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    I've owned my truck since new, its a 2010 with about 190K KM on it. U joints have been regularly greased since new, so not worried about those. I added a AAL about 7 years ago, so the rear is lifted, but not lifted a lot.

    There is play in carrier bearing, but there should be some play. Aren't there some technical specifications the would indicate when the carrier bearing needs attention? I get the "if in doubt replace it approach" (going to be using that method when I replace the pullies when I change the serpentine belt a part of preventative maintenance).

    The OP indicated that there was 1/2" of play. I would have thought that there would have been some technical guidance on some spec sheet that says any play over 'X' millimeters is an indication of a bad bearing.

    I knew my wheel bearings needed attention when there was a grinding noise. If there is no published spec on allowable carrier bearing play how do you know a carrier bearing needs attention? Mine isn't making any noise, but like the OPs, there's quite a bit of play.
     
  14. Jan 26, 2020 at 7:56 AM
    #14
    airport7

    airport7 [OP] Onward and Upward!

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    What symptoms were you having? I'm assuming the symptoms you had were from the frozen universal?

    How much play do you have? It's hard to tell how much play is in the bearing itself. Most of mine looks like play in the rubber buffer. It would be hard to quantify an acceptable amount of play in a rubber buffer like that.

    I think you just look for signs that might lead to it. My truck has a real slight shudder on takeoff (my wife doesn't even notice it) and a 'rubbery' groaning sound at speeds below 3 mph. I dont hear the bearing whining or anything so I think the problem lies in the rubber buffer being worn out. I will inspect it further once I get it pulled off.
     
  15. Jan 26, 2020 at 8:34 AM
    #15
    ryfox0276

    ryfox0276 Well-Known Member

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    Yeah with 180k you need to just replace all that. My u-joints were totally spent at 140k.
    I also had my driveshaft rebalanced because I guess running it with those toasted u-joints whacked it out of alignment just enough.
     
  16. Jan 26, 2020 at 8:41 AM
    #16
    airport7

    airport7 [OP] Onward and Upward!

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    Yeah agreed. Last time I had the truck in the air I checked all my u joints and they feel solid and I've tried to grease them at every oil change. But, I've only owned the truck for about 4 years now. It had around 140 on it when I bought it. And like I said before the previous owner didn't do jack for maintenance (poor truck). I'm surprised he even changed the oil lol. Anyway, I'll just do them all and see if the problem persists. Anyone else have any other suggestions on what I should inspect/service while I'm at it?
     
    Last edited: Jan 26, 2020

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