2010 2.3l ive haul around 2000lb once for almost 600 miles
Didnt have a problem. It just i cant use 5th gears at all.
Last week i haul the bronco ii for about 4 miles. It weighted 3400. Still not a problem.
But from where i live we have flat land. No hills.
I have 94 ranger.. donno how she handle. But my 2010 is fast