Standard rear leaf springs on pickup trucks and vans can flatten out under the hitch weight of a trailer, and adding leaf-type overloads to help reduce flex can create a harsh ride when not towing. Roadmaster Active Suspension (RAS) gives factory springs the ability to carry the load without compromising ride quality, solo or towing, according to the manufacturer. The RAS retrofit uses a variable-rate coil spring attached above the leaf-spring pack to convert the passive rear suspension into an active mechanical suspension. RAS is said to reduce trailer sway in crosswinds and improve overall handling, stability and safety. It comes with a 30-day money-back guarantee.
MSRP: Starting at $429
800-398-5036 | www.activesuspension.com