Active Suspension Kit | 2021+ F150

Roadactive Suspension

Product Sku: 3611-B

  • $539.00

Select your options

Drive Type
Support Style


This RAS® Suspension kit for the rear leaf spring is designed for an easy installation. It increases the rear suspension strength up to 50% for improved towing and hauling, reduces excessive bounce, improve stability, and attains the same or better-than-stock ride quality without needing extra adjustments or maintenance. This 3-in-1 solution works like a helper spring, sway bar and traction bar, at 1/3 the price. Fit-and-forget it install time is approximately one hour. 

Each kit is tailored to your specific vehicle

RoadActive Suspension is the only suspension upgrade on the market that adds strength to your rear suspension, provides same as or better than stock unloaded ride quality and doesn’t require readjustments or maintenance.

Each RAS kit comes fully assembled out of the box and ready for installation. Follow your application guide that is in the box and you will be ready to test your RoadActive Suspension after an installation as simple as 45 minutes! If you are not satisfied with your RoadActive suspension we offer a money back guarantee.


- Reduce Rear Squat & Bounce
- Improve Stability
- Improve Roadhandling & Stability
- Make RVing Safer
- Reduce Axle Wrap
- No Readjustments or Maintenance

  • Standard Duty: best for trucks that experience squat of less than 2 inches when loaded, and/or trailer applies tongue weight of 600lbs or less 
  • Heavy Duty: Best for trucks that experience squat of +2-3 inches when loaded, and/or trailer applies tongue weight of 600lbs or more.


Warranty Information

RoadActive Suspension kits are warranted for 5 (five) years from date of purchase, against defective components and materials. However, kits cannot be warranted if any changes or modifications have been made to any rear leaf spring suspension components on the vehicle you intend installing the kit on.

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free shipping $75+

Available on all orders of $75 or more to the contiguous lower 48 states. No code required at checkout.

Customer Reviews

Based on 1 review
Heath Wrench

Easy install. Didn’t notice a change in unloaded ride quality.


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