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Fabricators, How thick is your...

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by zakk, Mar 31, 2002.

  1. zakk

    zakk 1/2 ton status

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    Bumpers/forums/images/icons/wink.gif

    Those that built your own bumpers, what thickness did you use? I was thinking of using 2"x4" (1/4" thickness) rectangular tubing with 2" 5/8" tabs for D-Rings.

    Is that stout enuff for a K5??

    Thanks!/forums/images/icons/smile.gif
     
  2. 8_YOUR_H2

    8_YOUR_H2 1/2 ton status

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    3/16 is common. Its what I used. They are strong as heck.
     
  3. tRustyK5

    tRustyK5 Big meanie Staff Member Super Moderator GMOTM Winner Author

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    Zakk, I used .125" wall 2.5"x8" box tubing front and rear. It sounds thin, but it stood up to a 77 Ford pick-up rear ending me @ 55 MPH last spring. I've pulled and yanked, bashed and abused these with no complaints for the last 4 years. The box section at .125" is probably twice the strength of the frame you're attaching it too...

    IMO 1/4" box tubing is way overkill and just adds un-necessary weight.

    Rene
     
  4. laketex

    laketex 3/4 ton status

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    yep, 1/4" is overkill. I used 1/8" too and pulled from it 3 or 4 times this last trip...no worries.
     
  5. zakk

    zakk 1/2 ton status

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    that is kinda what i was thinking, but with a 4k pound truck, a few pounds won't matter/forums/images/icons/laugh.gif

    thanks for the quick response. I am gonna try to get down to the Metal Shop tomorrow.
     
  6. Grim-Reaper

    Grim-Reaper 3/4 ton status Author

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    On my bumper the winch deck and chin are 1/4. The box on the ends are 3/16 4x4 box. The side plates that accomidate the clevis holes and bolt the the frame are 3/4....yes 3/4 It sounds heavier than it is. It weighs about 120lb
    The rear is about the same but the center is 3/16. Pictures on my sites, links in sig.
     
  7. FRIZZLEFRY

    FRIZZLEFRY 1/2 ton status

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    I used 2x6x.25" front and rear /forums/images/icons/smile.gif
     

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