Originally Posted by freekyFX4

The most important thing to consider with aftermarket wheels and tires on a truck that you will use to tow a heavy trailer is the ply rating on the tires and the weight rating on the wheels. My wheels are rated at 3300 lbs each and my tires are E-rated, which is a 10-ply equivalent. The heavy-duty package is unnecessary. That adds heavy duty suspension and 8-lug wheels. I would stick with the factory tow package, which includes the electrical upgrades and tranny cooler. It will enable you to charge a battery on the trailer as well.

Originally Posted by asinatra

7-lug wheels + 4.10 gears