I recently purchased a 22 fishing boat. Boat, motor and trailer weigh approximately 4700-5000 pounds. I see my towing capacity is rated at 5300 yet I have a class II hitch installed on my truck which is rated at 3500 pounds. Anyone know the process of swapping out the factory class II hitch for a higher rated hitch? Can I remove the factory class II hitch myself? In looking at it, it appears the bumper may have to come off to slide it out. Strange why Ford would install a smaller hitch when every other SUV of it's size has a tow hitch with a higher towing capacity. All answers and suggestions appreciated.