I also have a 2003 Ford F250. I recently bought my new Eagle, and although it was the same hitch weight and GVWR, according to the specs, as my old 2006 Forest River Cardinal, I did experience more bouncing when pulling the Eagle. So I had the Firestone air bags installed with the on board compressor. It has stopped the bouncing, and over all has been a great purchase. I am still trying to find the best pressure setting where I get enough stiffness while not raising the back of the truck so much it puts the fifth wheel too high in the front.
2015 Eagle 323 LKTS
2003 Ford F250 7.3 L Diesel