I think the engineering team has nailed this suspension system, which consists of subframe - mounted struts and coil springs up front and a multi-link, double wishbone design with monotube dampeners in the rear.
The rear suspension also includes Bilstein monotube shocks, and a Bilstein dampener links the top of the rear axle to the frame, providing additional control — bringing the Ram Power Wagon far beyond what competitors offer for axle control.