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"5 MPH" Bumper


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I'm working on building a "5 MPH" bumper for the dually. The unit is made of 5"x5"x3/16" square steel tubing. The project will take me a couple of weeks to finish, but from the progress I've made so far, I'm really happy with the results. I had to stop at this point due to beer overload LMAO! I'm not finished with it by any means. Any input is appreciated Posted Image.

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The bumper on my 79 C30... caught 3 cars. I had to rustoleum every couple of years. Only damage in the 20 years I had it, a garage once busted my trailer plug when they pushed it.

Posted Image restoration in progress

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I always liked the look of that bumper on a serious truck. Here shown with my 5th wheel Scamper Camper, my home between marriages. (now long gone) Second photo before the cab off restoration.

It was fabbed of channel iron, a plate welded on the back for the lic plate recess. A section of pipe was fitted to the ends to round them. Originally mounted with 3 huge bolts each side. The first time I was rear ended, the bolts on one side sheared. We put it back with 4 bolts each side & welded stops that butted the frame. The welder fabbed the 2X2 hitch insert & it was never as good a fit as Reese. I regreted not buying & welding a manufactured insert... or getting a better fabricator. As I said, the trailer plug was damaged once so might have been better located.

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Thank you for your input and pics flagmanruss! Channel iron is good stuff to use for a bumper, depending on thickness. Sounds like you've got some pretty thick iron for your unit. My bumper is only 3/16" thick, but is tubular. I use 1/2" Grade 8 genuine Caterpillar bolts and nuts to hold the bumper to the frame, 4 bolts per side. I have 5/8" Grade 8 Caterpillar nuts and bolts if the need arises, but after I'm done with the gussets on the bumper, I may not need the 5/8" bolts :) At this point, my dad(who has a tendency to overbuild stuff) and I feel like the frame is the weak point. I'll be addressing that in the future. Thanks again guys!

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