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rear bar fab questions.

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rear bar fab questions.

Post by shorty_f0rty »

hi guys..

me and a few mates played with the bender for the first time on sunday and came up with this for a rear bar on the 40.
Image

imagine it flipped 180 deg and on the rear.. kind of like this..
Image

I was planning of getting some 10mm thick plate on the inside edge for mounting to existing holes in the rear bumper with suitable gussets to add strength. The tube is 32nb (42mm OD) with about 4mm wall thickness.

My first question is.. Would it be possible to integrate a some sort of stub axel(?) in there for a spare wheel carrier or is there just not enough metal there? Could you sleeve some box over where the stub axel goes for more meat for strength? with suitable gussets to the bar that runs under?

I was also thinking of putting the hub on the rear bar so there isnt the spindle sticking up when not in use. would this be better/stronger than having a spindle sticking out? I was hoping I could have one on either side.

2nd question is, if I wanted to put the hayman reese towbar receiver in the middle, what kind of bracing would be required to make it strong enough for towing, recoverys? another 10mm plate on the inside of the rear bumper/crossmember? I would have to cut a hole big enough for the receiver to fit and this might take out the middle 4 bolt holes. (refer to pic)
Image

I'm pretty new to this metal fabing game and wouldn't mind some feedback from you guys.

thanks.

Andrew
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Post by moose »

does this answer 1 of your ??

Image
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Post by shorty_f0rty »

moose wrote:does this answer 1 of your ??
sure does thanks for the pic!
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Post by brooksy »

Here is some of barwork I did on a TJ that will help you out Andrew. I had to intergrate all the barwork together to allow for a roof rack/roof scrub bars.
I built the towbar into the rear bar.


Image

Image

Image

Image



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Post by WICKED »

Image

Thats a nice Bar!
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Post by Struth »

brooksy wrote:Here is some of barwork I did on a TJ that will help you out Andrew. I had to intergrate all the barwork together to allow for a roof rack/roof scrub bars.
I built the towbar into the rear bar.






brooksy
I know you don't need me to tell you this, but that's some really nice work on the jeep.

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Post by hulsty »

I did my reciever hitch in a similar way to what your think. I Cut it into this C section I used for the bar, at the back of the receiver hitch is a 12mm plate welded to the receiver and uses the four factory bolts to secure it. All up 10 bolts holding the rear bar on, have done numerous recoveries and no issues. Its coming off soon to finish the edges with some 50x75x6mm RHS to suit a rear quarter chop.

Sorry these are the only pics i've got.

Image

Image

Image
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Post by AFeral »

WICKED wrote:Image

Thats a nice Bar!
You would'nt be biased, would you ?
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Post by joeblow »

two wings welded together.

Image
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Post by shorty_f0rty »

ok.. a few more questions..

1) the axle stubs you get from super heap, where do you get the bits to make the outer that rests on the stub? Do you make this if so out of what? I notice on the pics above there are stepped tube and have a cap.
Image

2) If I wanted to get a spindle (as per pic) and weld the inner shaft (1.5"/38.1mm) into some 32NB tube (42.4mm OD) will there be enough strength to support about 200kgs?
the spindle i wanted to use:
Image

If not would the point where the lower bar (as per pic) joins the top bar be enough to support the spindle and the weight on that point?
Image
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Post by PJ.zook »

You can buy hubs that dont have flanges that are perfectly suited for the application. I used one on a bar i designed and made here:

Image
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Post by lump_a_charcoal »

What is that hub called?
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