Hello, I made my first trip towing my MPG, Teardrop, with a 2001 Ford Ranger. It has auto trans and a v6 4.0 engine. I used overdrive when possible and when going up hills I used 4th and kept the rpm at 3000 . I think the transmission might have over heated. The RV states that the dry weight is 3750 and the Ranger states it can tow 4300 lbs. The RV was not over 4000 lbs. My question is, Although I was in limits of the owners manual could I be pushing the limits of the trucks capabilities? Thank you for your help.