It is interesting that so many 2011 F350's need extra springs/bags. Our pin weight varies but is over 3000 pounds and hitched the truck sits about 1/2 inch high. I was very happy it did as I had already ordered the air bag kit with compressor. (just didnt have time to install it befor our first trip last year) Haven't installed it yet as the ride is good as well as the TV being level. The only difference I know about from the post is we did order the 20" wheels and the GVW pkg which I am sure some of you did as well. Still very much a fan of the air bags and will eventually install them.