I replaced 2011 f150 5.0 4/4 in may with f150 3.5 ego turbo 4/4 I pulled ollie with both 5.0 and 3.5 turbo the 3.5 has more torque for pulling hills in pa big plus is gas milage 24 and 18-20 pulling ollie note: my wife says I run under speed limit 10 speed transmission shifts smoother than 6 speed in 5.0. I did get max tow option and tow mirrors, also has hitch assist ,but have not programed . Truck and trailer have to be level and a triangle measurement from hitch to bar code sticker you place on trailer , may get to it in spring. I use truck for daily use , interior quieter than most cars ...