[brianx]

The best thing you can do to avoid hitting the cab with sharp turns is to get a slider hitch. We had one in our Dodge one ton quad cab and never had any issues. I think the standard bed on the double cab is about 3 inches longer than on my old Dodge. The only drawback to the slider hitch is cost. Google pullrite slider hitch for more info. I'm sure there are cheaper models out there. The hitch weighs about 200lbs (moved it myself and almost threw out my back). I wouldn't pull a fifth wheel with the crewmax though.