Miker - Not trying to be a smart a**, but don't forget that when you raise the bottom of the trailer 3", the top goes up the same amount. I notice your trailer specs indicate the height is 12'2", but I can't tell if that includes the air conditioner. If not, your actual height is probably 13'2" and after the lift you'll be very close to the 13'6" maximum. I hope I'm wrong.
2015 Rockwood Ultra Lite 2604 WS. Rear LR, large street side slide with small wardrobe slide in BR.
2014 Ram 1500 Eco Diesel Laramie Quad Cab.