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Get it between 2025-03-04 to 2025-03-11. Additional 3 business days for provincial shipping.
Heavy Duty(HD) rear leaf spring upgrade by RoadActive Suspension completely simplifies improved load and road handling without maintenance or hassle
Provides up to 40-50% additional strength to rear suspension and improve squat by up to 2-3’’
Maximize everyday performance by reducing sway, body roll, greatly improved handling and stability
Guaranteed to maintain or improve loaded and unloaded ride quality without need for readjustments
Comes as a set. Estimated 1 hour installation with no special tools or maintenance required
*NOTE: Fits SuperDuty without top overload. See part 3611-SLHD for Superduty with factory top overload.
Heavy Duty(HD) rear leaf spring upgrade by RoadActive Suspension designed to enable improved towing capability, comfort and everyday performance without hassle. Suspension kit comes as set of variable rated tension coil spring designed to strengthen existing leaf springs by an additional 40-50% over stock factory leaf springs. The mechanically active suspension works to maintain the arch in the existing leaf springs and engage proportionate to force or weight that is applied, absorbing and dissipating load force energy. The unique design helper spring provides greatly improved stability, increased & improved load carrying capabilities, reduction in rear squat, reduced bounce, improved traction and driver control. RoadActive Suspension guarantees 100% ride comfort and maximum performance, with or without load. Once installed with proper tension setting, no adjustments necessary. Heavy Duty kit ideal for most towing and hauling applications or with +2'' of squat while loaded.