Has anyone else felt the need to lower their truck? I have a 3500 01 and a half two wheel drive dually. I bought it new and have had a canopy on it since. Wow, what a pain to try and get everyday items in the bed. The dealer told me they had a tsb to lower ONLY the four wheel drives. I'd like to lower mine about 4". Truck has trailer tow ,sway bar,and all the other heavy duty stuff on the rear. It looks really COOL, but ,, like a beautiful woman, very hard to live with on a day to day basis! Any help is appreciated.