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I have a 56 F100 and would like to move the rear bumper up and in. I already did the front and want to do that rear now. I know I can buy new brackets but I want to see if I can modify the existing brackets.
Before I go through calculating it, does anyone know where to cut and re-weld? Has anyone done this or is there a standard for doing it?
The process is relatively simple, take a piece of flat stock and place it across the backside of the bumper and drill the holes to mount the bumper. Take another piece of flat stock and bolt it to the frame in the stock mounting holes. Weld the two together...no need to mod the stock brackets. Here is a pic of what the bumper looks like after the mod...
I can't speak for the '56, but the '53 has a second set of holes that raise the bumper to be even with the bottom of the rear bed crossmember.
Here are some pix of my truck pre-fitting the bumper in the upper holes. If I remember correctly (I have it written down in my build notes but don't have them with me) the bumper will be around 3" from the bed in these holes. If you want it closer drill more holes. Just don't turn your frame into Swiss cheese.
PS: I love the bumper on the black truck. That's what I was planning to build, except I'm going to shave the bolts and put the tail lights in it.
No need for a curve in the bracket off the frame? It seems it would be a little too high.
Does the top of the bumper sit even or above the body?
Both the blue and the black truck have the same style bumper mounts. As for where it sits...that's entirely up to you and how you choose to fabricate your mounts.
Remove about 2" from the downward angle of the bumper mount and reweld. I did about 1.5" and wished I had done 2". This pic is before raising the bumper. I was looking at having no good spot to relocate my tag to So my removing 1.5" was a good compromise. I'm trying to find decent pic post-raising. Stand by.
So I cut a 2" chunk out of the brackets and welded them back together to move the bumper up and in.
I left the original one on to show the difference. You can see the right side is 2" higher and 3" closer.
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