When I had my previous truck, I found the additional weight of a utility bed took away payload from the extra space I now had available and gave up on hauling more on the truck (one of the reasons I have trailer).
Some of the dimensions you need to look at when buying a utility bed are rail height and bed opening width to fit your TC. Decide how you will tie the TC down - Will it tie to the utility bed or truck frame? If you plan to tow behind your setup, will a sufficiently large receiver fit under the utility bed?
