oldest 5er that wouldn't need to be lifted for 2016 RAM

I had to lower my 2016 ram 3500 DRW and will still need to raise the 5er a little to be perfect . My 5er is a 2013 keystone sprinter that is taller than any other 5er I ever owned ( under the pin box) it set nose low on previous 2008 f 250. Pm me if you need info on what was done to truck to lower it 3-31/2 inches which helped a lot 5er still needs to go up 2 inches to be perfect.