Sorry , i have to disagree with sydwayz on towing with the navigator. Have a 2000 expedition and put the heaviest hitch I could find , tows great. I have a 29 with twins and dual axel trailer. Factory tires sucked , a bit of sway due to the soft sidewalls. Get some good truck tires and you'll be ok. As far as power at the ramp , low 4 has more than enough power to pull that little scarab up the steepest of ramps even if you have the 4.7 , the 5.4 is better. Have used my buds 05 navigator on occasion and workd just as good as my setup. Good luck!