I’d bend some fat steel strap to fit the inside shape and round all the edges as big supports kinda like long washers inside the fiberglass to distribute the weight and hope for the best. But that’s just a guess as I’ve never attached anything to fiberglass.
Cutting out all the rotten steel in the flatbed right now and keep finding more rotten steel… about to say, screw it and buy a new flat bed. Lol
I found a couple used ones, but they’re all wrecked or fiberglass or doors are missing. I’ll pay $1000-$1500 for an ugly one as long as its sound. I found one with a bucket lift in it a couple weeks ago and wish I’d jumped on it. Lol.
I would run square tubing off the chassis between cab and box and from rear bumper (If it’s metal). Build a frame then put one of these on both sides. Watch the video in the link.
Either way, you’ll hate that truck in a year. Or i did. You may love it.
I had a bead on one a couple weeks ago for $500, but didn’t have time at all to go look at it and I’m not quite sure how I’d even get it back here at the moment.
I took the gas tank out to cut and weld it. Lol. So it’s immobile at the moment. I should’ve undone the 4 fat bolts that hold the thing on, unplugged it, put it up on pipe jacks, and drove the F250 out. Would’ve actually been easier. I love doing things the hardest way possible.
I’ve honestly thought about selling it and getting a F550 flatbed I’ve had my eye on for a few weeks. Flatbeds so much easier to install and work out of.
But I’ve contiplated traveling to Florida for a few weeks here and there to work in the winter (have a friend with a power washing business down there ). Be nice to be able to lock it up in hotels
No where to store anything, hard to put on ladder racks, carry surface cleaners, mount and plumb reels, machines etc. I bought one, studied on it a month and sold it.