I haul a camper and boat. I've found the Firestone sport air bags to work pretty good. Can handle 100psi of air. The place that's the biggest concern is your brakes. Performance Friction make a Carbon Metallic pad that eliminates brake fade and the all too often warped rotor problem. I now have 85,000 miles on these brakes, have almost 40% left, no rotor warp and very little brake dust. I also installed a sway bar on the rear axle housing for better stability. K&N, headers and Borla exhaust for better performance and stay with regular grade fuel.