Which air bags for my 2016 Ram

I tow an open trailer with my race car. The total weight is 4800 lbs. I had a 2004 Ram 1/2 ton with the leaf springs. I added a 2 ton Air Lift kit and it made the towing much easier. I traded the truck in on a 2016 1/2 ton Express with coil springs. I checked the Air Lift web site and I have a choice of 1 ton or 5 ton kits. Has anyone tried the 1 ton kit, and how did it work?

Raul

I've considered bags for my '10. Don't know the answer so here is a bump for you.
Dallas

I have the 5k kit on my 03 2500....I tow around 10klbs and front load much of it so the tongue weight has been slowly dropping my rear springs year after year. So this year, I added a set and I am back to my usual ride height fully loaded.

http://www.streetsideauto.com/p/air-lift...CFQWMaQodLQMN8Q

Thanks for the replies.

Raul