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DIY: Hidden Bedside Support Install

Discussion in 'General Tundra Discussion' started by csuviper, May 3, 2017.

  1. May 3, 2017 at 10:11 PM
    #1
    csuviper

    csuviper [OP] Moderator Staff Member

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    Some Mods :) See build thread for details
    Below is the install as completed on my 2012 5.7L Rock Warrior Crew Max. Should be the exact same process for all 2007+ Tundras.

    The Hidden Bedside Supports are sold by SDHQ. https://www.tundras.com/threads/sdhq-2007-tundra-hidden-bedside-support-system.10175/

    Key Features:
    • Supports factory bedsides, especially if there is no tailgate
    • Completely hidden
    • Prevents premature fatigue and cracks
    • Does not obstruct any bed space
    • Fully adjustable
    • Can even help is bedside is already bent
    • Perfect for trucks with fiberglass bedsides
    Parts List:
    (2) Main uprights
    (2) Upper bolt pucks
    (2) Lower pivot brackets
    (2) Lower mounts
    (2) Connecting rods
    (2) Right hand clevis’, ½”
    (2) Left hand heims, ½”
    (2) Fender support replacements
    (2) Drill templates​

    Hardware List:
    (4) ¼” x ¾” grade 8 bolts
    (4) ¼” grade 8 lock nuts
    (4) ¼” grade 8 flat washers
    (4) 3/8” x ¾” grade 8 bolts
    (2) 3/8” x 1 ¼” grade 8 bolts
    (2) 3/8” grade 8 lock nuts
    (8) 3/8” flat washers
    (2) 7/16” x 1” grade 8 bolts
    (2) 7/16” flat washers
    (2) ½” x 1 ¼” grade 8 bolts
    (2) ½” x 1 ½” grade 8 bolts
    (4) ½” flat washers
    (2) ½” right hand jam nuts
    (2) ½” left hand jam nuts​

    Tools Required:
    T30 Torx bit
    10mm socket / wrench
    7/16” socket / wrench
    9/16” socket / wrench
    5/8” socket / wrench
    3/4” socket / wrench
    Drill
    13/64” drill bit
    3/8” drill bit
    Center punch
    File
    Flathead Screwdriver
    Spray Paint

    Of course you have to do the install in the shirt that you get with the order.

    Packaging was great


    Here are all of the parts and tools laid out.







    Installation Instructions:
    1. Start by removing the driver’s side taillight using a T30 torx bit to remove the two bolts on the taillight. Pull the taillight outward to release the two tabs. Then twist the plugs with bulbs to remove from the taillight housings. Set the taillight housings aside.







    2. Use the flathead screwdriver to detach the wire mount for the taillights inside of the opening. Push the lights off to the side.




    3. Line up and place the provided DRILL TEMPLATE to the sheet metal that is on the back side of the taillight opening. Use the center punch to make a dimple in the sheet metal where the holes are shown in the DRILL TEMPLATE. Drill two 3/8” holes. It is much easier to start with a smaller hole and then move up to the 3/8” drill bit. Use the file to clean up the burrs on each side of the holes. Use a matching color spray paint to cover up the raw metal in the holes. This is an area that is not typically visible so you don’t need to be too careful when painting.










    4. Place the LOWER PIVOT BRACKET on the back side of the sheet metal (looking from wheel well to back of truck) and mount using the two provided 3/8” bolts and washers.



    5. Slide the MAIN UPRIGHT through the top of the tail light opening. Loosely bolt the upper bolt through the upright, the factory sheet metal, and into the UPPER BOLT PUCK using the 7/16” bolt and washer. Be careful not to drop the UPPER BOLT PUCK while installing. It is difficult to recover if dropped.









    6. Thread LOWER PIVOT BRACKET and the MAIN UPRIGHT together with the ½” bolt and washer. Then go back and retighten the upper bolt of the MAIN UPRIGHT.




    7. Remove the factory lower bedside supports with a 10mm socket. Install the new FENDER SUPPORT REPLACEMENT piece with the curved section sweeping toward the back of the truck using the provided ¼” hardware.




    Here is a comparison of the stock fender supports (top) and SDHQ supports (bottom)


    8. Install the LOWER MOUNTS to the factory receiver hitch using factory bolts.




    9. Install the CONNECTING ROD with the 3/8” x 1 ¼” bolt, flat washers, and lock nut on the RIGHT HAND CLEVIS side going to the MAIN UPRIGHT. Install the LEFT HAND HEIM side to the Lower Bracket using the ½” x 1 ½” bolt and flat washer. Adjust as necessary and tighten all hardware and jam nuts.




    10. Plug your taillights back in and reinstall your taillights using factory hardware.

    11. Repeat the above steps for the passenger side.
     
    Last edited: Oct 25, 2017
    okcowboy, SC_TRD, Black Wolf and 13 others like this.
  2. May 18, 2017 at 6:56 AM
    #2
    csuviper

    csuviper [OP] Moderator Staff Member

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    Some Mods :) See build thread for details
    This is an great solid and totally hidden system that definitely increases the strength and rigidity of the back end.
     
  3. May 18, 2017 at 12:00 PM
    #3
    Spolar

    Spolar Going broke

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    Is this not in their site yet?
     
    TRD15559 likes this.
  4. Aug 18, 2017 at 11:50 AM
    #4
    csuviper

    csuviper [OP] Moderator Staff Member

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  5. Oct 25, 2017 at 7:42 AM
    #5
    jqueener

    jqueener New Member

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    subed for future needs
     
  6. Oct 25, 2017 at 7:55 AM
    #6
    4x4_Angel

    4x4_Angel Perfectly Imperfect Tomboy....TTC #132

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    Soooooo....what we need to do is purchase this and then bring our trucks and the new parts to you w/ 2 12pks of beer and be ready to get dirty and cuss a lot and have fun turning wrenches?
     
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  7. Oct 25, 2017 at 8:42 AM
    #7
    831Tun

    831Tun crazy Bastrd

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    Thanks Brian. The fact that these are hidden makes it a really attractive upgrade. I didn't know these existed.
     
    4x4_Angel likes this.
  8. Oct 25, 2017 at 11:56 AM
    #8
    csuviper

    csuviper [OP] Moderator Staff Member

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    Im good with that.
     
    Trooper2 and 4x4_Angel like this.
  9. Oct 26, 2017 at 5:21 AM
    #9
    airgunner

    airgunner New Member

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    Maybe its too early in the morning for me but can someone explain to me what issue this product is addressing? Weak bedsides? Seriously, is that a thing?
     
  10. Feb 18, 2021 at 4:42 AM
    #10
    SamW

    SamW New Member

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    What's your long term review on these? My 2020 is starting to see a gap
     
  11. Feb 18, 2021 at 6:05 AM
    #11
    BrakeDust

    BrakeDust New Member

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    Apparently there's no issue it all if no one answered your question in 3 years! LOL
     
    300BLK likes this.
  12. Apr 28, 2021 at 2:47 PM
    #12
    Damie Street

    Damie Street Just a guy with a dog and a truck

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    Are bedside supports necessary if I put a camper on the truck. An AT Overland Summit, similar to the Go Fast Campers
     
  13. Apr 28, 2021 at 3:14 PM
    #13
    TXTundra2722

    TXTundra2722 Pipe Hitters Union

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    Airguunner hasn't been on in over a year so doubt he cares anymore. The beside supports are not really necessary if you never go over road. If you do go offroad and you have any kind of weight pressing down on your besides then something like this is recommended. There are other products as well. But this one is hidden.
     
    BlackSheep likes this.
  14. Apr 28, 2021 at 4:37 PM
    #14
    mb66l79

    mb66l79 New Member

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    I put these on my 21, because I put a topper on. Not sure if actually necessary, but cheap insurance. Much nicer product than what I was expecting. A lot more expensive than the ones that go in the bed, but you couldn't pay me to put that style in.

    Not saying these are needed or that anyone should buy them, but if someone wants bed supports, I definitely recommend the SDHQ ones.
     
  15. Apr 28, 2021 at 5:05 PM
    #15
    Damie Street

    Damie Street Just a guy with a dog and a truck

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    I do like the fact that they are hidden. I also don't like the look of the ones that mount in the bed of the truck.
     
  16. Apr 28, 2021 at 6:33 PM
    #16
    BlackSheep

    BlackSheep caffeinated member

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    I’ve not seen this thread before, or the product. The link Brian shared way back when didn’t take me to the hidden system site it just took me to SDHQ’s main site. I poked around on there but didn’t find them. These stiffeners look great, though. If I notice any separation between my bed sides and tailgate I think I’ll DIY something similar. So far though, eight months after installing my cap and making some more traditional stiffeners, I haven’t seen any movement there.
     
  17. Apr 29, 2021 at 7:13 AM
    #17
    csuviper

    csuviper [OP] Moderator Staff Member

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  18. Apr 29, 2021 at 7:17 AM
    #18
    csuviper

    csuviper [OP] Moderator Staff Member

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    In my opinion if you are adding a cap, camper, or rack that will have weight applied to the bedsides it is a very good idea to add bedside supports. The hidden ones are great as they dont take up any space in the bed and allow you to add items like the side storage cases.
     
    Damie Street and Black Wolf like this.
  19. Apr 29, 2021 at 7:42 AM
    #19
    Black Wolf

    Black Wolf Where's my popcorn salt? Damnit

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  20. Aug 16, 2021 at 10:42 AM
    #20
    W3agle

    W3agle New Member

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    This is definitely something I'm going to do. Install looks harder than I expected, but totally doable.

    Is there any benefit in coordinating this with the retractable bed step install?
     
  21. Aug 16, 2021 at 10:49 AM
    #21
    MadMaxCanon

    MadMaxCanon New Member

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    How does this item compare with the in bed stiffener upgrade? Is it basically the same thing but accomplished in a different way? If you have one, do you need the other?
     
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  22. Aug 17, 2021 at 8:17 AM
    #22
    W3agle

    W3agle New Member

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    Yeah this is also a bed stiffener - just hidden.
     

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