Welcome to the forum, you are obviously people of fine distiction!! I don't have actually weights of my 256rks but my f150 tows it very well. It slows on the BC mountain passes but for the most part it does well. I hav an 05 f150 with a 5.4lt. engine and 9900lb tow capacity. I look forward to hearing how your new eco boost handles your trailer. I ran mine over the scales with a weeks worth of gear and food, wife, 2 dogs, full fuel and 80lbs of propane and was about 13,000 lbs gross trailer and truck. You have chose a great unit we love ours and have never wished it was bigger, we can get into any spot we want so far. Get the HD edition you always want more truck.
2010 Jayco Eagle Superlite 256 RKS
2008 Dodge Ram 3500 Cummins
66 nights in 2016
61 nights in 2015