This ’01 Power Stroke F-250 sometimes carries a 2,500-pound Lance slide-in camper. Tow-alongs add 500 pounds of tongue weight to the rear. The Super Duty’s Tire Information Placard (TIP) shows OE LT265/75R16 “E” range tires. According to the Load Index & Inflation Table, maximum loads are 2,625 pounds front at 60 psi, 3,105 rear at 70 psi. The Super Duty’s current 35x12.50R17 Mickey Thompson Baja ATZs are Load Range D. Many 4x4 owners choose replacement tires based on size, price, and style.