ive not seen 1 bigger than my truck and a 53 footer i did pull campers for awhile to pay the bills instead of trucking. you have to have a dot physical the same as for cdl and some of the campers i pulled you had to have a class a to pull them and you have to run a log book same as driving a truck. now if it is your camper you dont have to worry about any of that you can even hook your boat or bike trailer behind your camper and drive all day and all night and not be bothered. if you can make a buck doing it then you have to follow all the dot regs. that gripes my ass.