Lots of good advice. I recommend adding helper air bags between the leaf springs and the frame rails. I have the firestone helper bags that T with a single air input added inside the fuel filler door. I tow a vehicle every now and then, all 4 wheels up on a trailer, about 250 miles. i do have a trans cooler, a bit more power and having the air bags keeps the front wheels planted well for steering and braking. The main thing is to take it slow, be smart, listen to your truck when towing.
1995 Dodge Ram 1500, bored, stroked and breathing fire.