I have a short box 2500 SD with a roll up vinyl cover .
I haul my wood and "other" things in my bed and when I hook up my 5th wheel camper I have to roll up my whole cover leaving my wood and "other" things exposed to the weather not to mention if we stop at a wal mart or the like everything in the bed is "easy" grabs for a thief .
Heres my mod and by the way if I am the only one who does this first I own the patent rights !
I talked with an upholster today and she said if I mark where the fifth wheel goes and take my cover off she will cut it out reinforce the edges and make a flap to roll up just like the main cover does. So when I hook up my 5er the bed is "for the most part" covered. Except where the flap is rolled up for the pin .
Then she would sew in velcro for the flap and the other three sides so when the 5er isn't hooked up I can simply roll the flap back out and cover the hitch back up .
Im sure I am not the first to think of this or do it but I have never seen nor heard of any one trying .