There's a little more than 9" of bed rail clearance so I don't think that will be a problem. I don't know if there's any adjustments to the 5th wheel suspension but I'll check and see. If not I think I'll move the pin box and see what that does.
The truck does look a little low in the back but the pavement has a slight incline toward the front. I may have to take some measurements empty and loaded. Even unloaded the front looks a little high. It's supposed to have a snow plow prep and camper packace so I don't know if that would make the front sit higher or not.
Thanks for the replies. Danny