I'm hoping the inventor, who I know, will be able to change the 4500 kit to fit a/my3500 C&C. I've been following this from inception, I lost track of them for a few years because they moved from the building we used to service. Well we got a call they were cold, so I was the one that responded and fixed their HeatPump. We kept their engineers cool or warm during the development of the liquid springs setup. So I had to ask if they had a setup yet for the Ram C&C 3500/4500/5500, unfortunately it's only for the 4500/5500
http://www.liquidspring.com/on-highway-vehicles/ram/ram-450
http://www.liquidspring.com/on-highway-vehicles/ram/ram-450