Thanks for the replies. I've read up alot on what to look at. From the only difference between the 2500 and the 3500 is the springs rating is just that and you can go over it etc,etc. I will be pusing the pin weight,but as far as trailer weight i'm within the rating. And I do suppose that after the hitch goes in I'll be over. The only stuff I will carry in the cargo hold of the 5ver is a ez up canopy and chairs and oudoor camper carpet. I won't be carrying wood. I'm not sure where the waste and water tanks are but thinking there in front of the camper axles, so I can't use that to off set some pin weight. I hear airbags are just to help level the truck and dosn't give you any assistance in carrying a little heavier load so would helper springs help? Is this the smallest big horn that heartland make?