Take your Ford F-150’s performance to the next level with the RAS HD Suspension Kit—engineered specifically for 2009–2026 4WD models. Designed for towing, hauling, and everyday driving, this heavy-duty system reinforces your factory leaf springs by up to 50%, delivering improved stability, reduced squat, and a smoother, more controlled ride in any condition.
Unlike air bag systems, RoadActive Suspension is a fully mechanical, maintenance-free solution—no compressors, no air lines, and no ongoing adjustments. Its progressive tension design provides extra support under load while maintaining factory-like comfort when unloaded. Whether you’re towing an RV or hauling heavy gear, this 3-in-1 system enhances safety, control, and confidence on the road.
Fully assembled and ready to install, this bolt-on kit delivers fast results with a simple installation process—so you can spend less time in the garage and more time on the road.
Key Features:
• Fits 2009–2026 Ford F-150 4WD trucks
• Strengthens factory leaf springs by up to 50%
• 3-in-1 design: helper spring, sway control, and traction support
• Reduces squat, body roll, axle wrap, and excessive bounce
• Progressive load support improves towing and hauling performance
• Maintenance-free system—no air lines, leaks, or adjustments
• Fully assembled for quick, bolt-on installation (~45–60 minutes)
• Durable, proven design trusted since 1998
Before You Order
Verify part number 3611-YHD exactly Match the listed product details to the part you are replacing before ordering. Compare dimensions, specifications and fitment information with your RV or component.
Frequently Asked Questions
What part number should I verify before ordering?
Verify 3611-YHD on your existing part, documentation or equipment label before ordering.
How should I confirm this part fits?
Compare the listed part number, dimensions, specifications and fitment details with your existing component. Do not rely on appearance alone.
