I recently moved from a 1998 Lincoln Navigator 4x4 with a 5.4 Triton with 110k miles to a 2000 Ford Explorer with a 4.0 SOHC with 80k miles also a 4x4 it has the tow package on it from the factory.... I will be towing a 1986 Bayliner Capri 1900 Cuddy with a 125 Force motor according to NADA my boat is 1755 lbs and my trailer is just a 1986 Escort Trailer I am adding 1000lbs for the trailer but I really dont think it is that much so over all I would say loaded up I am around 3500lbs. My truck is rated to towing is like 5500lbs... I know my trailer doesn't have brakes. Even with my Navigator I didn't go over 65mph. The lake I go to is about 60 miles one way and I usually go every other weekend and the last week of July I tow my bout 1000 miles one way to Lake Powell in Southern UT halfway thru in Salt Lake I stop for a 24 hr break. I have towed my boat about 30 miles with the Explorer of course without overdrive! It pulled it strong at 65mph but I think I will keep it at 60mph. I even set the cruise to see how it would do and it did good the RPMs were steady and no gear changing... What do you think I should do or check on the truck especially before my long trip! Should I also be concerned for anything? I am a little nervous about towing with the Explorer... When I had the Navigator I towed a 1987 SeaRay 210 Cruiser that was 7000lbs loaded and I didn't have brakes on that trailer either... So I am thinking it's not much different from that one... But any tips or suggestions would be great!! Thanks