I went to register my k30 today and have to pay an additonal $257 so it has the 10,000-15,000 GCVW and i'll be all legit towing a fullsize on the trailer. Do all K30's have this additonal weight fee? Or is it just if you want to tow a heavy trailer you have to pay the extra so its registered for that? So whats the deal if you have a 3/4 ton and you're towing a truck on a trailer that all adds up to over 10K lbs combinded weight?.. I suppose you can get a Fat Ticket if the Highway patrol wants to hassle you?