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.

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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

Product ID: 384928819

Details

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

🚛50% stronger rear leaf springs

⏱️45 min quick install

🛠️No maintenance, zero adjustments

$1556.45

Duties & taxes included

In stock

Sold byAmazon USADelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🚀 Elevate your Ford F150’s suspension game—haul harder, ride smoother, stress less!

BUILT TO ENDURE - Trusted by thousands since 1998, engineered for heavy-duty use with a 5-year warranty.
EFFORTLESS INSTALLATION - Get back on the road in 45 minutes with a hassle-free, no-airline setup.
BOOST YOUR HAULING POWER - Strengthens rear leaf springs by up to 50% for superior load support and towing control.
TRIPLE THREAT SUSPENSION - Combines helper spring, sway bar, and traction bar functions in one sleek upgrade.
COMFORT MEETS PERFORMANCE - Enjoy a smooth, stable ride whether your truck is loaded or empty—no stiff ride compromises.

The Original RAS® RoadActive Suspension 3611-YHD is a premium rear leaf spring upgrade designed specifically for Ford F150 4WD models from 2009 to 2025. Engineered in the USA, it enhances rear spring strength by up to 50%, improving load support and towing stability without sacrificing ride comfort. This no-maintenance, quick-install system functions as a helper spring, sway bar, and traction bar combined, backed by a 5-year warranty and trusted durability since 1998.

Specifications

ASIN	B09DFRX6XT
Auto Part Position	Rear
Automotive Fit Type	Vehicle Specific Fit
Best Sellers Rank	#129,061 in Automotive ( See Top 100 in Automotive ) #5 in Automotive Replacement Leaf Spring Helpers
Brand Name	RAS
Customer Reviews	4.6 4.6 out of 5 stars (209)
Included Components	Leaf Spring
Manufacturer	RoadActive Suspension
Manufacturer Part Number	3611-YHD
Manufacturer Warranty Description	5 Year Manufacturer Warranty
Maximum Lifting Height	3 Inches
Model Number	3611-YHD

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