Forum Discussion

Frank_Mehaffey's avatar
Sep 06, 2018

ford super duty truck bed problem

Just before Labor Day, I thought that I would clean out the normal dirt, dust and stuff under the rubber floor of my 2012 F250. Found a hole thru the bed to the center support rail, about the size of a 50 cent piece, and the beginnings of another hole across on the other side, same rail, just above the tires. Found a sub culture online, of people with similar problems on Ford super duty trucks with steel beds. If you are in a salt brine area, you might want to inspect your rails. Ford also put a thin piece of rubber above the rail, against the bottom of the bed, which I suspect held the water and brine against the bottom of the bed. The front of the bed on the passenger side, is also about 1/2 inch lower than the driver side. The bed had bent a little. So, after talking with my guru mechanic, he suggested sistering in some substancial box steel in 2 or 3 places next to the suspect rails, instead of the replacement rails, so I can get some beef back and more, and inspect the floor. This is the first 250 of our 3 where this was a problem. I have always cleaned the frame and bottom of things frequently, so beware and inspect your steel bed rails. I looked at the new super duty catalog and they mentioned using a heavier gage aluminum, different from the first generation of aluminum beds. We are about a year or two from getting a new truck, so if Ford is beefing up things. NOS beds are $3000 without shipping. I will let people know if this fix works out. The replacement rail kits are about $400, but the steel looks a little weak for 3000 lbs. on top of it.
  • This is coming a little late for you. I had my 1999 f-250 rot out real bad. The cross frame supports under the truck bed completely dissolved into a flaky croissant. I sold it and cried the blues loosing my 7.3 diesel! I bought a 2016 f250 with a 6.2 and here is my point: I now put the truck up on a lift and spray the underside, cable's, leaf springs, everything, with amsoil metal protector. A case sets me back about 150 bucks. Compared to 46 thou for a new truck, its a no brainer. I have made flexible spray can nozzles that are 2 feet long tubes that allow me to insert into the cross rails, frame, pillars, etc. I spray the **** out of the underside. This is the only way to get 20-30 years out of a truck, with out it turning into a rust bucket. I'm offering this as a solution to everyone to prolong your trucks life. I learned the hard way. I'm fortunate to have access to a lift. Perhaps talk to a local garage about after hours use of their lift. Bring lots of cardboard to put down under the lift to catch the drips. Most shops wont like the residue. Also...for gods sakes...wear a proper fitting respirator. Although there is minimal solvent, you don't want to inhale a sealant. At 1st appearance it looks watery, but it dries to a hard wax like coating that is semi translucent.
    I run on salty roads in N.J. and drive on the beach. I had to do something to repel the salt effects.
    I recommend you power wash underside, and let it completely dry before proceeding.
    Oh... i dont sell amsoil. I just think I like their stuff better than fluid film, and spraying undercoating like rustoleum? That just masks and covers rust. The MP is translucent and can be recoated as needed. Its also flexible so i don't flake. When your done...your truck will smell like a crayola crayon for a while. The smell dissipates quickly though. Also clean off any overspray before it hardens. Once hard, its a pita to remove.
  • Man, sorry guys, but it's threads like these that make me not miss living in the salt belt!
    I remember those days....
  • We have lots of companys that do dripless oil spray in our area since the 80,s I get any new truck sprayed underneath and doors and rockers. Never any rust 10yrs later on anything just had the new ram done a mth ago $150.
  • Tvov's avatar
    Tvov
    Explorer II
    Yep, my truck, 2008 F250, has rusting bed cross braces. Everything else looks practically brand new - Frame, the bed itself, etc. Just those cross braces. I've talked with other people who have had the same problem. One guy had his brother weld in metal to replace the rotted pieces.

    I had a body shop guy give me an estimate, but I'm still trying to decide when and what to do.

    It is weird - my truck look fantastic, inside and out, except for those bed cross braces.