the Expedition did fine! i was really impressed with how it leveled off and didnt sag...
even with the 5.4, it feels like it could use a little steeper gear than the 3.32:1 it has in it, but maybe it was just me. the last 2 times i have towed has been with a diesel so maybe i am spoiled?
anyway, here are pics of how it sits with the tracker and trailer in tow.