2. The rear suspension is damped by Bilstein 9100 remote reservoir shocks and a custom set of Atlas leaf springs. The Bilsteins produced a good-quality and controllable highway ride and performed very well off road, even mounted under 10,000 pounds of truck. The guys at Atlas Spring nailed the right spring rate on the 65-inch long-travel leaf packs, which weren't too stiff or soft on the trail. Each pack comprises eight load-bearing leaves and one rebound leaf.