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Tacoma Loose Bed design Flaw explanation

Discussion in '2nd Gen. Tacomas (2005-2015)' started by Milowilli, Aug 27, 2015.

  1. Aug 27, 2015 at 9:00 PM
    #1
    Milowilli

    Milowilli [OP] Milowilli

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    Second Gen Tacomas that go off road, fetch heavy loads or have campers with heavy racks can suffer from the loose bed issue. The symptom will be a banging noise due to the bed jumping up and down on the FORWARD MOUNTS. You can feel the looseness on the forward mount if you try to lift the bed up.
    I will try on this thread to explain the issue and offer a solution.

    The Bed sits on the frame on a thick composite gusseted mount with a hole in the Center.
    The Sleeve
    image.jpg2_1a6664a23f0117e10477fa5dfa8f2c353abbfbd6.jpg
    The gusseted composite mount resting on the metal frame .
    image.jpg3_de1d45f554445943018a0e1a28eefd45df8a03a4.jpg
    On a brand new truck the floor of the bed is in line with the sleeve and is held together with the torx bolt. With frame and bed Flex due to weight or off road use, the bottom of the composite gusseted mount starts to rub on the metal mount wearing it away!!! The more space it gets the quicker it wears out until the floor of the bed drops away from the washer of the securing bolt. The bed is now loose and bangs up and down.
    This pic is a severe case. No amount of tightening the bolt can fix this.
    image.jpg1_2520adb9f5648efec8770103f1c3c61dd58560b8.jpg
    If your bed is loose, remove bolt and see if metal sleeve is in line with floor of bed. If it protrudes above the floor it means the composite block mount has eroded. DO NOT GRIND IT FLAT WITH A GRINDER TO MATCH THE LEVEL OF THE FLOOR!!! You will cause misalignment of the bed. The spacer is the height guide.
    This is another pic of the wear process starting.
    image.jpg4_11c52b03e935de54ce78a4b0ba4889432ec0637c.jpg
    The fix is to reduce friction between the bottom of Composite bed mount and the metal frame. I used thin hd Conveyor belt or the side of an old car tire and installed between frame and bed then tightened bolt until the washer is flat to the floor and is firm against the sleeve.
    Here is a YouTube video of the problem and the guys correct diagnosis but WRONG FIX!!!
    http://youtu.be/60oQitbr0Zw
     
    Marc70, SR-71A, TRDSport10 and 16 others like this.
  2. Aug 28, 2015 at 5:40 AM
    #2
    jtweezy

    jtweezy Well-Known Member

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    Yea, I would think putting something in between the mount and the frame would be the correct fix...rather than cutting the sleeve short and giving in to the flaw. Looks like there should be some sort of urethane/rubber buffer sandwiched between the composite mount and the frame.
     
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  3. Aug 28, 2015 at 12:37 PM
    #3
    Milowilli

    Milowilli [OP] Milowilli

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    Exactly
     
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  4. Aug 28, 2015 at 1:33 PM
    #4
    ranger098

    ranger098 Well-Known Member

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    Well said, i had no idea what the issue was going into this thread, and now i feel i know everything i need to know. You should write user manuals.
     
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  5. Aug 28, 2015 at 1:39 PM
    #5
    Nighthawk

    Nighthawk 'streme spoats

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    I have been waiting to tackle this issue for awhile now, thanks for the write up.
     
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  6. Aug 28, 2015 at 1:45 PM
    #6
    Maximus

    Maximus Well-Known Member

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    Interesting. Whenever I drive over a larger speed bump, it sounds like a trailer hitch moving up and down in the receiver hitch. Never thought much of it since I keep some tools stored in the rear cubbies. Might have to do some investigating.
     
    bigfoote13 likes this.
  7. Aug 28, 2015 at 1:52 PM
    #7
    teamhypoxia

    teamhypoxia MichelinMan

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    Interesting... I had that problem some time ago and ground a bit off the sleeve to fix it. Hasn't been a problem since.

    Any theories as to why it always seems to be the front most passenger side bolt that people experience this with?
     
  8. Aug 28, 2015 at 4:20 PM
    #8
    gimmeajo

    gimmeajo i'm here for the food

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    I fixed mine by taking 3/4 of a turn on the front passenger bed bolt. Problem gone.
     
  9. Aug 28, 2015 at 5:43 PM
    #9
    Blkvoodoo

    Blkvoodoo a Hooka smoking caterpillar has given me the call

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    Hmm, something to investigate, went over a series of rail road tracks today, and heard/felt a couple hard bumps, was thinking maybe the rear leaves have sagged enough I'm probably right off the bump stops, but it was a more sharp hit than that. 256K miles has it's own issues I guess.

    Have to check this out this weekend.
     
  10. Aug 28, 2015 at 7:11 PM
    #10
    Kyitty

    Kyitty Mr. Beard

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    LOL These stupid Tonka Truck plastic beds.....
     
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  11. Aug 28, 2015 at 8:37 PM
    #11
    Crom

    Crom 1/2 way thru. I'll be back AUG 31, 2021

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    Good to know! Thanks Milo!
     
  12. Aug 28, 2015 at 9:33 PM
    #12
    TYetti

    TYetti 4cylinders of awesomeness

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    I've had this issue for a while but after I put my tool box in the bed and filled it up the banging stopped maybe I should look harder into this
     
  13. Aug 28, 2015 at 9:33 PM
    #13
    tomwil

    tomwil Well-Known Member

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    So is there anything that can be done as a preventative measure for new trucks?

    It appears that putting something between the composite gusseted mount and the metal frame while the truck is new, would raise the bed too high.
     
  14. Aug 29, 2015 at 2:39 AM
    #14
    bludweiaer

    bludweiaer Well-Known Member

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    my pro had this issue, passenger side bolt closest to the cab, i removed bolt took grinder, ground it down just below flush, reinstalled bolt , no issue anymore, it was just the one bolt
     
  15. Aug 29, 2015 at 5:00 AM
    #15
    Milowilli

    Milowilli [OP] Milowilli

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    cut out a piece of rubber from the side of a car tire, shape it to size, cut a hole in the middle for the sleeve then install between bed and frame mount. It should be about 2-3 mm thickYou can then install bolt and torque it down. The sleeve moist rest between bed frame and bolt washer...do both sides.
     
    TRDSport10 likes this.
  16. Aug 29, 2015 at 5:04 AM
    #16
    Milowilli

    Milowilli [OP] Milowilli

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    The sleeve is your guide for the height alignment of the bed. Remember it's the bed that wore out. You have to replace the wear with a piece of the side of a car tire then torque it all together. You temporary fixed the problem but bed will wear again and it will get loose. If you shorten the sleeve again you will keep lowering and mis aligning the bed.
     
  17. Aug 29, 2015 at 5:05 AM
    #17
    Milowilli

    Milowilli [OP] Milowilli

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    What's that?
     
  18. Aug 29, 2015 at 5:06 AM
    #18
    Milowilli

    Milowilli [OP] Milowilli

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    It's how the frame flexes.
     
  19. Aug 29, 2015 at 5:07 AM
    #19
    Milowilli

    Milowilli [OP] Milowilli

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    Let us know !!!!
     
  20. Aug 29, 2015 at 5:07 AM
    #20
    Milowilli

    Milowilli [OP] Milowilli

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    Let us know!!
     

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