Leaf Spring Assist for Ford F-150 (4WD) 2009 - 2024 SD Kit

Ford F-150 (4WD) 2009 - 2024 SD Kit

The RoadActive Heavy Duty Leaf Spring Assist kit is engineered for Ford F150 trucks that carry heavy loads or tow regularly. Designed to reinforce the rear leaf springs, it reduces rear bounce and squat under load while improving stability, handling, and overall performance. This kit maintains excellent unloaded ride quality, ensuring your daily drive remains smooth and comfortable.

Each kit includes a pre-assembled RAS spring for each rear leaf spring and is tailored to your specific vehicle for precise fitment. Installation is simple, taking approximately 45–60 minutes, with no adjustments or ongoing maintenance required. RoadActive Suspension is the only suspension upgrade on the market that strengthens your rear suspension while maintaining stock-like ride characteristics. Backed by a money-back guarantee, this kit ensures safer towing and enhanced performance in all driving conditions.

Key Benefits:

• Reduces rear squat and bounce

• Improves vehicle stability

• Enhances road handling and towing safety

• Reduces axle wrap

• No readjustments or maintenance required

Specifications:

• Type: Heavy Duty

• Vehicle Fit: Ford F150 4WD 2009-Current

• Estimated Install Time: 1 hour

• Condition: New

• Brand: RoadActive Suspension

• Part Number: 3611-YHD

Care Instructions