I think its ridiculous not to check the upper limit of the tow vehicle. My new F150 is certified to tow a very heavy trailer. About 13000 lbs as I recall. But, the reason they want it to be a truck and not an SUV is due to the short wheelbase. SUV's tend to fishtail and jackknife when towing a heavy load, whereas, the long wheel based vehicles are much harder to get to fishtail. That is a fact you cant get around. Vehicle weight is another factor. Full sized pickup is at least 5000 lbs or so. They have a weight percentile that limits the weight a vehicle can pull. Its in the motor vehicle laws about trailer towing. The big chain companies, tend to have one simple rule to fit all. They dont allow for individual cases. ITs like GEICO not insuring Mustangs years ago. Mustangs were black listed and they didnt care if you were a 70 year old lady and the mustang had a 4 cylinder engine. If it was a mustang, they would not insure it. Why? They told me it was because the type who bought them (teenagers) had too many wrecks and it was easier just to blacklist all Mustangs than argue who drives how. I guess if they didnt ban all mustangs it would come under some type of prejudicial treatment. In other words, cant ban teenagers, but banning one brand of car was ok. Got to love lawyers! by the way< anything with a turbo was also blacklisted back then. They didnt sell 4 cylinder roller skates with turbos like they do now:laughing: