I have a 2000 Dodge Dakota 4WD and I pull my 1970 Dodge Charger on a trailer behind it (trailer + Charger weight about 4700Lbs). Like already stated, the 4.7 engine does not have alot of grunt and the gearbox computer is a little dumb when it comes to change down gears, specially going uphill. My Dakota has added airbags in the rear to keep the rear of the car from sagging.

The Dakota does get the job done, but there are better trucks out there. If I had the money Id buy a "new" diesel Toyota pickup with a manual gearbox...

/Tom