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Do bed stiffeners just transfer stress somewhere else?

Discussion in '3rd Gen. Tacomas (2016-2023)' started by photodoc, Apr 17, 2025.

  1. Apr 17, 2025 at 5:13 PM
    #21
    slater

    slater Well-Known Member

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    Its not a l5/s1 lumbar fusion....:D
     
  2. Apr 17, 2025 at 5:38 PM
    #22
    dirt clod

    dirt clod Active Member

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    How about a piece of heavy gage aluminum, cut to shape, under a bed mat.
     
  3. Apr 17, 2025 at 5:41 PM
    #23
    Kwikvette

    Kwikvette Well-Known Member Vendor

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    Could just create a larger support to handle the stress from the bed flexing.

    An "all hands on deck" approach.

    20240814_182927.jpg

    20240814_182923.jpg

    20240814_183137.jpg
     
  4. Apr 17, 2025 at 5:43 PM
    #24
    UMC

    UMC I will not comply

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    Are you a chiropractor? What are you talking about? Back brace, knee brace, cast for your broken arm? Which one shouldn't I use doc?
     
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  5. Apr 17, 2025 at 7:13 PM
    #25
    Phlogiston

    Phlogiston There are no victims, only volunteers.

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    I'm thinking Kinesiologist
     
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  6. Apr 17, 2025 at 7:55 PM
    #26
    soundman98

    soundman98 Well-Known Member

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    The issue the bed reinforcements fix is the hard angle of the bed.

    The sharp right angle of the bed wall to the bed floor makes the functionality of the pickup bed physically useful. But to properly distribute the load of the bedside into the lower frame section, a 45 degree triangular piece from the top side of the bedside to the floor would perform the job the best. However this has the adverse side effect of closing off the bed, and it's no longer a pickup.

    Aluminum can work, but aluminum thermally expands differently, as well as fatigues differently. So it's a less than ideal material to add support to a mild steel structure.

    All any of the bed stiffeners are doing is adding parallel lengths of material to distribute the load over a larger surface area, the same fundamentals as how any structural I-beam works.
     
  7. Apr 17, 2025 at 8:16 PM
    #27
    RichochetRabbit

    RichochetRabbit Ping Ping Ping

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    And if the load ever becomes enough to impact the stiffener, replace that for cheap and be glad the brace went first.
     
  8. Apr 17, 2025 at 8:23 PM
    #28
    VTCAL

    VTCAL Well-Known Member

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    rotated tires changed oil threw out the old air freshener.
    Those can be difficult to source...
     
  9. Apr 17, 2025 at 8:27 PM
    #29
    soundman98

    soundman98 Well-Known Member

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    Not from Kwikvette...
     
  10. Apr 17, 2025 at 8:27 PM
    #30
    musicisevil

    musicisevil Lesser-Known Jack Wagon

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    Not any more. Especially not for him lol
     
  11. Apr 17, 2025 at 8:31 PM
    #31
    soundman98

    soundman98 Well-Known Member

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    The new failure point with any stiffener is the through-bolt mounting locations. But the design of the stiffeners would only allow forces to "exit" the bed space.

    Frankly, if the bolt holes shear on a stiffener, its likely the stiffeners bore the entire weight of the truck during a rollover.
     
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  12. Apr 18, 2025 at 11:15 AM
    #32
    photodoc

    photodoc [OP] Of the paths u take in life make sure a few r dirt

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    Great explanation. Thank you. My concern was by not allowing the flex in the bed walls and transferring that would I be kicking the can down the road. By this explanation I feel more confident that this is likely not the case.

    Yes, Sports Chiropractor so I deal with biomechanics a lot. Oh every type of brace has a purpose but also has a consequence as well somewhere else.

    Close...see above. I do use a lot of kinesiology.

    Thanks great explanation. No concern about it becoming to rigid? Some flex is needed no?
     
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  13. Apr 18, 2025 at 11:21 AM
    #33
    545

    545 Well-Known Member

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  14. Apr 18, 2025 at 1:15 PM
    #34
    RichochetRabbit

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    Bridges have what I think are called "buckler plates" that cover junctions of I-beams and spread the stress over 12 rivets and 2-3 feet down the beam (both sides). Same total stress, but the mechanical design advantages of spreading out the stress means more metal must fail to see total failure.
     
  15. Apr 18, 2025 at 8:46 PM
    #35
    soundman98

    soundman98 Well-Known Member

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    a few pieces of metal aren't going to fix the real flex in the frame. they're correcting the flex introduced from having a gigantic unsupported opening in the rear of the pickup box.

    https://www.youtube.com/watch?v=p1LO6uxy11I
     
  16. Apr 18, 2025 at 8:57 PM
    #36
    Willy Lump Lump

    Willy Lump Lump Well-Known Member

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    This and that
    Hey, I know that tattoo.
     
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  17. Apr 18, 2025 at 9:55 PM
    #37
    Lunchmeat79

    Lunchmeat79 Well-Known Member

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    Anyone have stiffeners and and a 2 drawer decked setup? Any compatibility issues with any brand?
     
  18. Apr 18, 2025 at 10:36 PM
    #38
    davidstacoma

    davidstacoma Friendly Curmudgeon

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    The way I like to explain it is bed stiffeners prevent side fumbling in the lunar wainshaft.
     
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  19. Apr 18, 2025 at 10:41 PM
    #39
    Kwikvette

    Kwikvette Well-Known Member Vendor

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    4 run, 2 don't
    That's only because it consisted of six hydrocoptic marzlevanes
     
  20. Apr 18, 2025 at 10:45 PM
    #40
    davidstacoma

    davidstacoma Friendly Curmudgeon

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    Correct. As utilized in the successful implementation of Milford trunions.
     
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