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post #1 of (permalink) Old 05-27-2002, 04:39 PM Thread Starter
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Drilling rear bumper?

I'm starting work on my rear bumper/tire carrier and am having some trouble figuring out how I'm going to mark the bumper for drilling and mounting? It was a real pain when I drilled my front bumper brackets for mounting. I'm planning on using the existing holes in the rear crossmember. Any great ideas? I can't really get behind the crossmember to mark the bumper. Also, should I be fine mounting the rear bumper directly to the crossmember, or should I put some sort of spacer in there?
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post #2 of (permalink) Old 05-27-2002, 07:33 PM
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Re: Drilling rear bumper?

The rear bumpers I've seen stand off the rear cross member by a couple of inches using "L" brackets welded to the bumpers.
They are mounted to the two pairs of holes in the cross member just directly out board from the frame's channels.
Additionally, for added frame tie in strength, it is a good idea to fabricate some longer "L" brackets with one leg bolted through the channel frame (using squeeze tubes) and the other leg behind the rear cross member.
The bumper mounting bolts then go through the added frame "L" brakets then through the rear cross member and finally through the stand off "L" brackets welded to the bumper. Hope I made that clear enough ... [img]images/icons/smile.gif[/img]
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post #3 of (permalink) Old 05-27-2002, 07:38 PM
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Re: Drilling rear bumper?

just do some careful measuring of the crossmember holes and transfer them to your bumper. that's what i did and worked fine. i just used the existing 8 holes and mounted bumper that i made out of 2X6X3/16 tube. i've towed guys with the d-ring i welded and no prob with strength.
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post #4 of (permalink) Old 05-30-2002, 09:33 AM
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Re: Drilling rear bumper?

I built a 52" bumper/tire carrier for my 91 YJ. Hopefully these dimensions will help in getting the measurements you need.
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File Type: pdf 787490-REAR_BUMPER.pdf (4.1 KB, 0 views)
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