(RAS®) RoadActive Suspension HD 3611-SLHD | Fits 2009-2024 Ford F250 & F350 With Factory Top Overload

$58.90 USD
Shipping fees will be calculated at checkout.
  • Free worldwide shipping

  • Free returns

  • Carbon neutral

  • Secure payments

  • (RAS) RoadActive Suspension HD Rear Leaf Spring Upgrade – U.S. Company, Original Product built by the original creators of RoadActive Suspension system, this rear leaf spring upgrade comes from a North Carolina based company with a track record of durability and performance since 1998. Engineered and assembled with a focus on quality and reliability. Look for the RAS trademark to ensure you're getting the authentic, original product.
  • Maximize everyday performance by reducing sway, body roll, bounce, greatly improved handling and stability
  • Guaranteed to maintain or improve loaded and unloaded ride quality.
  • Estimatated 2-3 hour installation time with no readjustments.
  • *Top overload spring must be removed for fitment of RAS. Instructions and hardware included with kit.
Model Number3611-SHD
Manufacturer Part Number3611-SLHD
ManufacturerRoadActive Suspension
Extended Length21.5 inches
Auto Part PositionRear, Top
Compatible with Vehicle TypeTruck
Automotive Fit TypeVehicle Specific Fit
Style NameModern
Exterior FinishBlack
Material TypeSteel
StyleModern
Compatible With Vehicle TypeTruck
The video showcases the product in use.The video guides you through product setup.The video shows the product being unpacked.

Why RoadActive Suspension

RAS Kit On Box

A High Quality Part

For More Than Just Squat

Using high quality components proven to last, pickup owners enjoy the seamless blend of improved load handling, performance, ride quality and enhanced overall performance at all times.

Celebrating 25 Years
  • Are there counterfeit or knockoff versions of RoadActive Suspension kits?

    Beware of imitation kits sold online. Only genuine RoadActive Suspension products have been engineered, tested, and warrantied in North Carolina since 1998. Listings with RAS in the title are genuine RoadActive Suspension products.

  • How much does RAS increase payload capacity?

    While RAS can strengthen the rear suspension by up to 50% in a progressive manner and can improve the way your truck handles loads; it and no other suspension upgrade can increase the manufacturer weight ratings.

  • Will RAS fit my lifted truck?

    From a fitment standpoint, RAS often fits lifted trucks without an issue. Before ordering for your lifted truck, be sure to check your suspension for possible obstructions. If there appears to be an issue please contact RAS directly for assistance.

  • Will RAS help reduce my rear squat?

    Yes! While RAS is geared towards improving overall load handling, stability, and performance without hassle; RAS will also help reduce rear squat by up to 2-3 inches.

  • How is RAS different from other suspension helpers such as air bags?

    RAS offers a more complete solution, where enhancing stability, reducing rear squat, dampening excessive rebound, improving performance, and providing same-as or better-than-stock ride is just as important as reducing rear squat.

What Pickup Owners Are Saying About RoadActive Suspension

  1. Will's RoadActive Experience

    Purchased Ford F150 Kit


    Will shares how RoadActive Suspension helped improve his towing and ride quality with a simple driveway install.

    The video showcases the product in use.The video guides you through product setup.The video shows the product being unpacked.

    Will's RoadActive Experience

  2. Claude's RoadActive Experience

    Purchased Chevrolet Silverado 1500 Kit


    Claude pushes his 1/2 ton truck to the limit and shares how RAS helped.

    The video showcases the product in use.The video guides you through product setup.The video shows the product being unpacked.

    Claude's RoadActive Experience

  3. Josh's RoadActive Experience

    Purchased Ford F150 Kit


    Josh's daily driver experienced bounce, squat and instability while towing his boat and trailer. He shares how RAS helped improve the towing experience.

    The video showcases the product in use.The video guides you through product setup.The video shows the product being unpacked.

    Josh's RoadActive Experience

  4. Broderick's RoadActive Experience

    Purchased Toyota Tacoma Kit


    Broderick carries extra weight in the back and often uses his Tacoma for camping. He shares how RAS improved his off-roading experience with this fit-and-forget install.

    The video showcases the product in use.The video guides you through product setup.The video shows the product being unpacked.

    Broderick's RoadActive Experience

  5. Chad's RoadActive Suspension

    Purchased Toyota Tundra Kit


    Chad loads his Tundra for his business everyday. He was thinking about adding airbags, but came across RoadActive Suspension. He shares why it worked best for him

    The video showcases the product in use.The video guides you through product setup.The video shows the product being unpacked.

    Chad's RoadActive experience

  6. Travis's RoadActive Experience

    Purchased GMC 1500 Kit


    Travis uses his 1500 for work and play. He was initially considering air bag helpers, but found RAS and shares his impressions.

    The video showcases the product in use.The video guides you through product setup.The video shows the product being unpacked.

    Travis's RoadActive Experience

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