What PSI are you running in the tires. Should be 45psi in the rear. My 2500 CTD requires 65psi front, the Hemi probably only needs 45psi front. Also throw 6-60lb sand bags in the back. Way, way cheaper than the vasoline treatment you'll need from trading in a 13 on a 14.
I had an F150 with maxtow and a payload of 1857lbs towing a 7300lb TT. TW was 900-950lbs. With 8500lbs your going to be over the 1500 GVW and RAWR.
I had no reserve left in the F150. And no Ram has 1857lbs of payload in crewcab/quadcab config's. You'll be sorry you trade.
