rear bumpers ripping off need to BRACE ideas?

banging baja · Nov 12, 2012

my issue being is for one the threaded holes used to mount the bumper get pulled through the sheet metel. 2nd issue is even nuts or bolts are getting pulled through.

I wanna fix this right i was thinking of running some thicker plate across the back panal for support but in fear it will just bend the whole rear sheet section and possible seperate it from my frame
Heres my bumper that im working with

if u could throw me some ideas ive done some research but have only came up with a slide in frame bumper or a cheesy little brace that ties frame and this panel together i wanna drag my truck backwards uphill if need be thx u

WrenchMonkey · Nov 12, 2012

banging baja said:
...a slide in frame bumper...

This.

Run box tubing into the "framerails" with holes drilled and tapped in the bottom, to match the hitch mounting holes.

Then a piece of 2x1/4" flat to reinforce the frame from below...

Oh, and welcome to NAXJA

! And nice nuts.

Robert

87manche · Nov 12, 2012

WrenchMonkey said:
This.

Run box tubing into the "framerails" with holes drilled and tapped in the bottom, to match the hitch mounting holes.

Then a piece of 2x1/4" flat to reinforce the frame from below...

Oh, and welcome to ! And nice nuts.

Robert

yes.

the stock bumper mounting holes were never meant to take ANY force from recovery or towing. You need to tie into the factory hitch/skid mounting points.

ROBZ95Xj · Nov 13, 2012

i ditched the sheetmetal crossmember for a 3x3x3/16 angle iron one that is tied into my frame stiffners and shackle boxes with some additional bracing

souske · Nov 13, 2012

This is how to do it:
http://www.naxja.org/forum/showthread.php?t=993533

banging baja · Nov 13, 2012

um i like the idea of getting a piece of box and slide it into the frame rail this will stiffen the frame internally. Really its just building the reverse of my bumper. but i think ill use the 3x3x3/16 angle iron as well id like to tow with my bumper as well so i think this will do this

(i dont have cad so paint will do lol)

top part is my bumper brace design use the 3x3x3x16 angleiron welded to 2 4x2 rect tube to this angle iron and slip the whole thing into the frame. the attach my bumper onto the new (bumper brace) heh? heh? the blue represents were i want to add onto my bumper cause i did the cut and fold mod red is for the holes and for a reciver to fit onto my bumper.

thxs for the ideas think i got a direction now

souske · Nov 13, 2012

Overkill, but it wil work

Boss Cherokee · Nov 13, 2012

banging baja said:
my issue being is for one the threaded holes used to mount the bumper get pulled through the sheet metel. 2nd issue is even nuts or bolts are getting pulled through.

I wanna fix this right i was thinking of running some thicker plate across the back panal for support but in fear it will just bend the whole rear sheet section and possible seperate it from my frame
Heres my bumper that im working with

if u could throw me some ideas ive done some research but have only came up with a slide in frame bumper or a cheesy little brace that ties frame and this panel together i wanna drag my truck backwards uphill if need be thx u

Maybe your nuts are too heavy?:eeks1: I tied mine in with angle iron brackets kicked off the trailer hitch bolts!

Frank Z · Nov 13, 2012

BTDT......

http://www.naxja.org/forum/showthread.php?t=907275

banging baja · Nov 13, 2012

got some materials

jdbwrx · Nov 15, 2012

More visuals for you:

banging baja · Nov 15, 2012

got some frame bracing done today

the bottom part were u got cut the frame out to remove the plate that attaches those rubber thing that got rebraced with some 10 guage as well
and some more

got one side shackle bolt trimed and my 35" 2x4 is shoved in there i plan to cut it down so i can weld it to the backside of my bumper were the plate is for the factory mounts

so im sortta gunna copy what i just saw above blue being my welded area red being mounting locations so i will be able to have both 4 bolts to the factory mounts and the hitch mounts or do u think just the hitch mounts will do and get rid of the body mounts?
idk im building as i go lol thxs for the ideas everyone
heres my 2x4 in

NCCherokee · Nov 15, 2012

you might as well use the stock points in addition to the hitch points. They are easily incorporated into the design and add insurance. I had a poorly designed homebrew that created cracks in the rear x-member. We welded those up, plated the inside corner where they tore, and then I added the tube inserts to my rigid bumper mounting system to strengthen the whole shebang.

Cracks - like this on both sides

cracks welded

braces/patches for inside corners

welded into place

that took care of the repairs.

2x4 tube welded to rigid brackets

in place

done

JeepN4kc · Nov 15, 2012

Damn good fab work in this thread! Very nice work all - looks awesome.

banging baja · Nov 19, 2012

well i got my thread insert done

and i got my frame rails done and drilled and welded onto the bumper i was given 36" of 2x4 (it was cheaper than 22 no cut charge) which was perfect cause that gave me enough to make some sides for my bumper to go with the cut and fold mod

well its not real fancy but i think it will get the job done. i messed up and welded the nuts on backwards on a thread insert and i got realign my holes in the frame. but two easy fixes with other 10 guage strip and a drill bit and a little paint ill be done with the bumper woohoo!

rear bumpers ripping off need to BRACE ideas?

banging baja

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