[Indy]

Towing with the OD on??? Whether towing horses, travel trailer, tractors......neigh, neigh Yay ...would NEVER. I've known several people who tried to tow things (with different makes of vehicles) with overdrive on. Why, I'll never know because it ruined their trans. Sure, it might help the gas mileage but why take a chance? I've towed 4500# travel trailer always with OD off. Doesnt make that much difference in rpms. And really, even at 70mph is not straining the engine a bit and much safer on trans. Even my old GMC Safari with a 6 cyl pulled the trailer at 70 without any problems on the engine (with OD off)..though have to be carefull on the swaying. A trailer with couple horses shouldn't be over 6000#s should it? (using a lightweight as long as you don't overdo the bed payload with grain, hay, extra tack, extra water, etc....thus adding more weight than you might think). We plan to get a horse trailer and couple horses but plan to use a lightweight and to be very carefull in our weight management.