I have a 2001 F150 with 4.2 V6 equipped with 4spd/OD auto, transmission and 3.55 rear end. I have used it to tow a 4500lb camper, closer to 5k loaded, locally (less than 100 miles) and even up to Fort Mtn. 3 times with no issues (a little slow). We are planning on going to Gulf Shores in April. Should I be ok pulling it that far (500 miles one way)? 101,000 on the speedo but is in excellent working order for its age.