Extended cab 6ft box with a slight dent in the back haha no the box is completely garbage and I thought it would be cool idea to put a 7ft box on it because I’m gonna have to cut the fenders either way since it’s going on 37s with a SAS Dana 44 I haven’t seen any extended cab with a 7ft box yet so I wanna build one
Good bones. If you’re going to cut the wheel arches anyway, then I would think it would be as simple as extending the frame back a little bit. And you’d probably have to relocate the bolt holes. It would be easy to shim it where the new bed doesn’t exactly match the curve of the frame. A little more thought.
if you’re going to want a bumper that will actually take some force or carry a trailer/tow hitch, you’d have to extend it back kind of the way it is. You could go to the scrapyard and cut off some frame and add it, or you could just start with some flat stock and make it into a C shape. Never underestimate the strength of adding a few angle struts made out of 3/8 inch rod or such.
The other thing I didn’t think of, will the gas door line up? That fill next assembly is a hard tube inside a big rubber tube, it has several curves, and it’s not so easy to relocate it. The harder tube in the middle drops all the way down to the bottom of the gas tank, so you don’t get static electricity as the gasoline drops through the air in the tank, possibly creating a spark.
When I did the Road Ranger, I had to move the location of the door inward towards the center of the truck since I had removed the bed, and I was mounting it in the side of my toolbox. I started by cutting the inside tube short, and then extending it with a piece of flexible fuel hose about an inch and diameter. The thought was good, but that rubber hose would kink which would make filling the tank almost impossible. I had to restart with a scrap yard full length hard tube, kind of a lightning bolt shape, grease it up really well, and then force it down into the tank at the new angle. I’d say it was hard because I’m a feeble old man, but honestly, it was just hard period, feeble or not. But I got it.
Hard to see in this picture, but the gas door is right next to the fire extinguisher
I cut the whole gas door assembly out of the side of the bed, trimmed it about an inch wider than the cavity, and use that as a flange when I cut the hole in the side of the truck box, and mounted it. If you’re not dramatically worried about the cosmetics, you could simply relocate it that way on your truck and then fill the remaining hole in the side of the bed.
or maybe you could go the full Road Ranger route…
I just have a low deck because I pull the step trailer like a fifth wheel. But I’ve been thinking of making a slide in box, a little bit like a dump truck bed, for when I just want to carry whatever. The thing looks cool and gets a lot of attention, but it’s not very utilitarian when I don’t have the big trailer on it, and the big trailer is too much to ride around with all the time.
Hope it helps