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Get out of that hole! DIY seat risers...

Discussion in '3rd Gen. Tacomas (2016+)' started by mthopton, Feb 21, 2016.

  1. Mar 11, 2019 at 10:20 AM
    #81
    mtskibum16

    mtskibum16 Well-Known Member

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    I mean what calcs are you doing? It gets pretty complicated to analyze that change correctly. My guess is that it would be fine for an average person in an average collision, but that's really just a guess.
     
  2. Mar 11, 2019 at 1:18 PM
    #82
    tonered

    tonered tacorider

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    Conservative pin shear, bending, and tension while ignoring a relieving moment from the spacer. It was a long time ago, and I don't think I even saved it since it was trivial for the 1.0in spacers if using Grade 10.9.

    I tried to find the post, but it might have been in a deleted thread?
     
    Last edited: Mar 11, 2019
  3. Mar 11, 2019 at 2:34 PM
    #83
    Nucguy

    Nucguy New Member

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    Be careful. If you assume the original bolt is 1/8” above the floor plate using a 1 inch spacer could increase bolt shear loading by a factor of eight. Using a wider spacer should help reduce this loading but only if you can assure the spacer will not move relative to the floor plate during a design basis accident. Make this modification knowing you may be compromising your seats ability to maintain its design integrity. Use the strongest bolt you can get, make sure it is torqued properly and its lenght is long enough to use all the threads available in the floor plate. Good luck.
     
  4. Mar 16, 2019 at 12:17 PM
    #84
    pdxmonkeyboy

    pdxmonkeyboy Well-Known Member

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    as an engineer, I kind of feel compelled to inform people that concerns over the strength of your mounting bolts is not warranted. Your car seats have little to with crash safety other than controlling your inertia vector during a crash. The most strain is actually on the FRONT bolts in a crash as your weight moves forward and THEN backward. You are not attached to your seats!!

    The forward inertia is transferred entirely to your seat belt system in an accident. Your seat only absorbs the "recoil" forces... that whole 3rd law of motion thing.

    if anything, your seat brackets failing in the rear would improve safety by absorbing forces in an accident but they are not going to fail as in an accident the forces on the rear seat are mostly down.
     
    Last edited: Mar 16, 2019
  5. Mar 16, 2019 at 1:24 PM
    #85
    Claudiomartinof

    Claudiomartinof Well-Known Member

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    Am I the only one that sits too high instead of low? The center rear view mirror always blocks my sight... i did t had this issue with my old 97 Chevy.. i had to look slightly up to see through the mirror.. now the mirror is kinda low or I am too high... I cranked up the mirror as high as I could but is not enough...


    Am I the only one?




    I feek lonely....
     
  6. Mar 16, 2019 at 1:36 PM
    #86
    STrooper

    STrooper For HIS glory!

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    Good job OP, thanks for sharing!!!:thumbsup:
     
    CygnusX191 likes this.
  7. Mar 16, 2019 at 1:51 PM
    #87
    tonered

    tonered tacorider

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    Now go take a look at where the seat belt latch attaches.

    :cheers:
     
  8. Mar 16, 2019 at 1:53 PM
    #88
    pdxmonkeyboy

    pdxmonkeyboy Well-Known Member

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    WtF? sighhh. always nice to look like a complete moron.
     
  9. Mar 16, 2019 at 2:54 PM
    #89
    tonered

    tonered tacorider

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    You looking in a mirror?

    IMG_20190316_145330.jpg

    :jerkoff:

    It's been amateur hour in the 3rd Gen section this week
     
  10. Mar 16, 2019 at 2:58 PM
    #90
    pdxmonkeyboy

    pdxmonkeyboy Well-Known Member

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    No need to be a dick about it... I never saw a seat belt attached to a seat before.
     
  11. Mar 16, 2019 at 3:17 PM
    #91
    tonered

    tonered tacorider

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    ORLY. :brianr:

     
  12. Mar 16, 2019 at 4:36 PM
    #92
    mtskibum16

    mtskibum16 Well-Known Member

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    Uhhh...I think he was saying he made himself look like a moron, not directing it at you @tonered .
     
  13. Mar 16, 2019 at 4:56 PM
    #93
    tonered

    tonered tacorider

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    My bad if that was the intention.
     
    CygnusX191 likes this.
  14. Mar 16, 2019 at 5:41 PM
    #94
    Buckmaster63

    Buckmaster63 First-Time Taco Owner

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    SS PRO V2, EXTANG Solid Fold 2.0 Tonneau Cover
    I have over 15K miles in my '18 TRDOR, and I am super comfy in the seat. I used to have hip and knee problems in other vehicles, but not in my taco. At 5'10 and 190 lbs I sit at the right height and the seat is very supportive. I would prefer leather....so maybe a seat cover is in my future.
     
  15. Mar 16, 2019 at 5:49 PM
    #95
    Itchyfeet

    Itchyfeet Well-Known Member

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    I sure hope some of you are not designing suspended walkways at a Hyatt.
     
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  16. Mar 16, 2019 at 7:15 PM
    #96
    FLA_Hoosier

    FLA_Hoosier Well-Known Member

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    I doubt 90% of the readers here understand that reference o_Oo_O
     
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  17. Mar 16, 2019 at 9:35 PM
    #97
    Alnmike

    Alnmike Well-Known Member

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    Great point. Do all 3 seat belt points attach to the seat?
     
  18. Mar 17, 2019 at 12:15 AM
    #98
    OnHartung'sRoad

    OnHartung'sRoad -So glad I didn't take the other...

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    Thanks for sharing this!
     
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  19. Mar 19, 2019 at 2:33 PM
    #99
    mrproduxn

    mrproduxn Well-Known Member

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    There are several options available from several members. Here is what I made and works for me. Feel a little more at ease with a bigger support and grade 10.9 bolts with 150,000 psi tensile strength.

    2018_09300007.jpg
    2018_09300010.jpg
    2018_09300013.jpg
     
  20. Mar 19, 2019 at 3:04 PM
    #100
    Alnmike

    Alnmike Well-Known Member

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    Nice, but tensile str isn't everything. Gotta include every aspect of Mohrs circle including shear and jerk-resistance.

    The only true way to make it safe is titanium lugnuts with nanocarbon antisieze gel and a Teflon corrosion inhibitor...
     
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