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.

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.

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Original (RAS®) RoadActive Suspension 3611-YHD | Fits Ford F150 4WD 2009-2025

Original (RAS®) RoadActive Suspension 3611-YHD | Fits Ford F150 4WD 2009-2025

4.6/5

Product ID: 384928819

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Details

Brand
RAS
Auto Part Position
Rear
Included Components
Leaf Spring
Maximum Lifting Height
3 Inches
Manufacturer
RoadActive

📏3-inch max lift height

🚛50% stronger rear leaf springs

⏱️45 min quick install

Description

🚀 Elevate your Ford F150’s suspension game—ride stronger, smoother, smarter!

BOOST YOUR HAULING POWER - Strengthens rear leaf springs by up to 50% for superior load support and towing control.
PLUG AND PLAY PERFORMANCE - Installs in just 45 minutes with zero maintenance or adjustments needed.
EFFORTLESS COMFORT ALWAYS - Maintains smooth ride quality whether your truck is loaded or empty—no harsh stiffness.
TRIPLE THREAT SUSPENSION UPGRADE - Combines helper spring, sway bar, and traction bar functions in one sleek solution.
BUILT BY THE ORIGINALS TRUSTED NATIONWIDE - Crafted by RoadActive Suspension since 1998, ensuring unmatched durability and reliability.

The Original RAS RoadActive Suspension 3611-YHD is a heavy-duty rear leaf spring upgrade designed specifically for Ford F150 4WD models from 2009 to 2025. Engineered in the USA, it boosts spring strength by 50%, lifts up to 3 inches, and installs in under an hour with no maintenance required. This 3-in-1 suspension solution enhances load support, reduces squat and bounce, and maintains ride comfort, making it the trusted choice for professionals demanding durability and performance.

Specifications

Brand	RAS
Auto Part Position	Rear
Included Components	Leaf Spring
Maximum Lifting Height	3 Inches
Manufacturer	RoadActive Suspension
Automotive Fit Type	Vehicle Specific Fit
Item Weight	33.5 pounds
Package Dimensions	31.2 x 10 x 5.4 inches
Item model number	3611-YHD
Manufacturer Part Number	3611-YHD

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Original (RAS®) RoadActive Suspension 3611-YHD | Fits Ford F150 4WD 2009-2025

Details

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Specifications

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