RAS

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When purchasing a product, price is the consumer's primary concern. At present, RAS has 306 products for sale. RAS products range in price from $539 to $589, and the average price of all the products is about $569. You should take everyting into consideration before buying the products, after all, it is not a small expenditure for most consumers.

We found that most of the RAS products are manufactured by RoadActive Suspension and RoadActive Suspensoin. The manufacturers provide RAS with a steady supply of products, and they have a good cooperative relationship with each other.

You can confidently purchase RAS products from the seller RoadActive Suspension. The brand holds an average rating of 4.51, testifying to its excellent reputation.

RAS Best Sellers

Last Updated: Jan 9, 2026

Original (RAS®) RoadActive Suspension 4611-HD | Fits Chevy/GMC 1500 1990-2024

Leaf Spring Helpers

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Genuine (RAS) RoadActive Suspension HD system is designed to strengthen and stabilize rear leaf springs for trucks carrying heavy loads or towing. Each kit is engineered, manufactured and assembled in North Carolina with a focus on durability, performance, and reliability. Since 1998, RoadActive Suspension has provided solutions that improve stability, reduce squat and sway, and extend the life of leaf springs.

Reduces Squat & Bounce – Strengthens rear leaf springs by up to 50%, providing improved load support and control when towing or hauling—reducing squat by up to 2-3 inches.

Unmatched Ride Quality & Stability – Maintains a smooth, controlled ride whether loaded or unloaded—no stiff suspension like other add-ons.

3-in-1 Suspension Upgrade – Functions as a helper spring, sway bar, and traction bar in a single, cost-effective solution.

No Maintenance. No Adjustments. No Air Lines. – Installs in as little as 45 minutes and begins working immediately with zero upkeep—ideal for drivers who want performance without the hassle.

Proven, Tested, and Built to Last – Designed and tested for heavy-duty use on the road and off. Trusted by hundreds of thousands for its unmatched reliability, safety, and long-term durability.

*NOTE: Does not fit 2022 models with single rear leaf spring suspension, 2015-2018 w/magnaride, OR 2025 GMC/Chevy 1500.

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

Leaf Spring Helpers

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(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.

Reduces Squat & Bounce – Strengthens rear leaf springs by up to 50%, providing improved load support and control when towing or hauling—without compromising ride height.

Smooth Ride, Loaded or Empty – Maintains superior ride quality and vehicle stability in all conditions—unlike airbags or stiff jounce-style alternatives that affect everyday comfort.

No Maintenance. No Adjustments. No Air Lines. – Installs in as little as 45 minutes and begins working immediately with zero upkeep—ideal for drivers who want performance without the hassle.

Proven, Tested, and Built to Last – Designed and tested for heavy-duty use on the road and off. Trusted by hundreds of thousands for its unmatched reliability, safety, and long-term durability.

3-in-1 Suspension Upgrade – Functions as a helper spring, sway bar, and traction bar in a single, cost-effective solution

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(RAS®) RoadActive Suspension 4611-TDHD | Fits Toyota Tundra 1999-2021

Leaf Spring Leaf Springs

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Authentic Made In USA RoadActive Suspension HD rear leaf spring upgrade by (RAS)RoadActive Suspension. Completely simplifies improved load and road handling without maintenance or hassle.

Provides up to 40-50% additional strength to rear suspension and improve squat by up to 2-3''

Maximize everyday performance by reducing sway, body roll, greatly improved handling and stability

Guaranteed to maintain or improve loaded and unloaded ride quality without need for readjustments

Comes as a set. Estimated 1 hour installation with no special tools or maintenance required

(RAS®) RoadActive Suspension 3611-HD | Fits Chevy/GMC 2500&3500 | Nissan Titan | F150 2009-2014 2WD | F250 1973-2010

Self-Leveling Suspension Units

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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.

Reduces Squat & Bounce – Reinforces rear leaf springs by up to 50% for superior towing and hauling performance.n and improve squat by up to 2-3''

3-in-1 Suspension Upgrade – Functions as a helper spring, sway bar, and traction bar in a single, cost-effective solution.

No Maintenance, No Adjustments Required – Unlike air-based systems, RAS installs in under an hour and works immediately with zero upkeep.

Proven Performance & Durability – Designed for heavy-duty towing, hauling, and everyday driving with long-lasting reliability.

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(RAS®) RoadActive Suspension 4614-SAT | Fits Toyota Tacoma 05-23 W/Axle Below Leaf Spring

Leaf Spring Helpers

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Authentic Made In USA RoadActive Suspension rear leaf spring upgrade by (RAS)RoadActive Suspension. Completely simplifies improved load and road handling without maintenance or hassle.

Provides up to 40-50% additional strength to rear suspension and improve squat by up to 2-3''

Maximize everyday performance by reducing sway, body roll, greatly improved handling and stability

Guaranteed to maintain or improve loaded and unloaded ride quality without need for readjustments

Comes as a set. Estimated 1 hour installation with no special tools or maintenance required

*Fits Toyota Tacoma With Axle BELOW Leaf Spring Only

(RAS®) RoadActive Suspension 3611-SHD | Fits Ford F250/F350 2011-2024 [Without Factory Top Overload Spring]

Leaf Spring Leaf Springs

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Eliminates Squat & Reduces Bounce – Reinforces rear leaf springs by up to 50% for superior towing and hauling performance.

Unmatched Ride Quality & Stability – Maintains a smooth, controlled ride whether loaded or unloaded—no stiff suspension like other add-ons.

3-in-1 Suspension Upgrade – Functions as a helper spring, sway bar, and traction bar in a single, cost-effective solution.

No Maintenance, No Adjustments Required – Unlike air-based systems, RAS installs in under an hour and works immediately with zero upkeep.

Proven Performance & Durability – Designed for heavy-duty towing, hauling, and everyday driving with long-lasting reliability.

*NOTE: Fits SuperDuty without top overload. See part 3611-SLHD for Superduty with factory top overload.

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(RAS®) RoadActive Suspension 3611-Y | Fits Ford F150 2009-2023 4WD | Non-HD Version

Leaf Spring Helpers

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It comes assembled and ready to install

This is a full active suspension kit - only one required per vehicle

Unlike stiff air shocks, active suspension only stiffens the ride while towing, retaining the normal smooth vehicle ride when not towing

Maximize everyday performance by reducing sway, body roll, greatly improved handling and stability

Original (RAS®) RoadActive Suspension | Fits 2025 Chevrolet Silverado & GMC Sierra 1500

Leaf Spring Helpers

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Reduces Squat & Bounce – Strengthens rear leaf springs by up to 50%, providing improved load support and control when towing or hauling—reducing squat by up to 2-3 inches.

Unmatched Ride Quality & Stability – Maintains a smooth, controlled ride whether loaded or unloaded—no stiff suspension like other add-ons.

3-in-1 Suspension Upgrade – Functions as a helper spring, sway bar, and traction bar in a single, cost-effective solution.

No Maintenance. No Adjustments. No Air Lines. – Installs in as little as 45 minutes and begins working immediately with zero upkeep—ideal for drivers who want performance without the hassle.

Proven, Tested, and Built to Last – Designed and tested for heavy-duty use on the road and off. Trusted by hundreds of thousands for its unmatched reliability, safety, and long-term durability.

*NOTE: Does not fit 2025 models with single rear leaf spring suspension, 2015-2018 w/magnaride, OR 2025 GMC/Chevy 1500.

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

Leaf Spring Leaf Springs

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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.

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(RAS®) RoadActive Suspension 3611-BHD | Fits Ford F150 2015-2024 2WD

Leaf Spring Helpers

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Eliminates Squat & Reduces Bounce – Reinforces rear leaf springs by up to 50% for superior towing and hauling performance.

Unmatched Ride Quality & Stability – Maintains a smooth, controlled ride whether loaded or unloaded—no stiff suspension like other add-ons

3-in-1 Suspension Upgrade – Functions as a helper spring, sway bar, and traction bar in a single, cost-effective solution.

No Maintenance, No Adjustments Required – Unlike air-based systems, RAS installs in under an hour and works immediately with zero upkeep

Proven Performance & Durability – Designed for heavy-duty towing, hauling, and everyday driving with long-lasting reliability

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(RAS®) RoadActive Suspension 3611-CHD | Fits Chevy/GMC 2500&3500 W/Top Overload Spring

Suspension Coil Springs

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Authentic Made In USA RoadActive Suspension rear leaf spring upgrade by (RAS)RoadActive Suspension. Completely simplifies improved load and road handling without maintenance or hassle.

Factory overload spring requires a few inches of squat, while RAS engages immediately and greatly reduces bounce

Maximize everyday performance by reducing sway, body roll, greatly improved handling and stability

Guaranteed to maintain or improve loaded and unloaded ride quality without need for readjustments

*Note: factory top overload spring must be removed and RAS HD will provide a slight improvement in suspension strength vs factory overload spring, will engage sooner and provide significant reduction in bounce,

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(RAS®) RoadActive Suspension 3613-THD | Fits Dodge Ram Pickup 2500/3500

Leaf Spring Helpers

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Heavy Duty(HD) rear leaf spring upgrade by RoadActive Suspension completely simplifies improved load and road handling without maintenance or hassle

Provides up to 40-50% additional strength to rear suspension and improve squat by up to 2-3''

Maximize everyday performance by reducing sway, body roll, greatly improved handling and stability

Guaranteed to maintain or improve loaded and unloaded ride quality without need for readjustments

Comes as a set. Estimated 1-2 hour installation with no special tools or maintenance required

*NOTE: Kit DOES NOT fit on Dodge 2500/3500 that come with factory top overload spring

(RAS®) RoadActive Suspension 4611 | Fits Chevy/GM 1500 1990-2023 | Non-HD Version

Leaf Spring Leaf Springs

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This Standard Duty(SD) kit adds 30-40% in strength to rear suspension and reduce squat by 1-2''.

Maximize everyday performance by reducing sway, body roll, greatly improved handling and stability

Maintain or improve loaded and unloaded ride quality without readjustments

Reduce axle wrap & wheel hop issues

Estimated 1 hour installation with no special tools required. No Maintenance Required

Great for performance and light duty towing/hauling applications.

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(RAS®) RoadActive Suspension 4617-T | Fits 2015-2024 Chevy Colorado/GMC Canyon

Leaf Spring Leaf Springs

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Authentic Made In USA RoadActive Suspension rear leaf spring upgrade by (RAS)RoadActive Suspension. Completely simplifies improved load and road handling without maintenance or hassle.

Provides up to 40-50% additional strength to rear suspension and improve squat by up to 2-3''

Maximize everyday performance by reducing sway, body roll, greatly improved handling and stability

Guaranteed to maintain or improve loaded and unloaded ride quality without need for readjustments

Comes as a set. Estimated 1 hour installation with no special tools or maintenance required

*DOES NOT FIT: 2024 Canyon AT4X or 2024 Colorado ZR2

(RAS®) RoadActive Suspension 4624-SAT | Fits Toyota Tacoma 05-22 w/Axle Above Leaf Spring

Leaf Spring Leaf Springs

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Provides up to 40-50% additional strength to rear suspension and improve squat by up to 2-3''

Maximize everyday performance by reducing sway, body roll, greatly improved handling and stability

Guaranteed to maintain or improve loaded and unloaded ride quality without need for readjustments

Comes as a set. Estimated 1 hour installation with no special tools or maintenance required

*Fits Toyota Tacoma With Axle BELOW Leaf Spring Only(see 4624-SAT for axle ABOVE leaf Spring)

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(RAS®) RoadActive Suspension 4515-R | Fits Ford Ranger 2019-2025

Leaf Spring Leaf Springs

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Authentic Made In USA RoadActive Suspension rear leaf spring upgrade by (RAS)RoadActive Suspension. Completely simplifies improved load and road handling without maintenance or hassle.

Provides up to 40-50% additional strength to rear suspension and improve squat by up to 2-3''

Maximize everyday performance by reducing sway, body roll, greatly improved handling and stability

Guaranteed to maintain or improve loaded and unloaded ride quality without need for readjustments

Comes as a set. Estimated 1 hour installation with no special tools or maintenance required

(RAS®) RoadActive Suspension 3612-HD | Fits Ford F150 2003-2008

Leaf Spring Helpers

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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.

Eliminates Squat & Reduces Bounce – Reinforces rear leaf springs by up to 50% for superior towing and hauling performance.

Unmatched Ride Quality & Stability – Maintains a smooth, controlled ride whether loaded or unloaded—no stiff suspension like other add-ons.

No Maintenance, No Adjustments Required – Unlike air-based systems, RAS installs in under an hour and works immediately with zero upkeep.

Proven Performance & Durability – Designed for heavy-duty towing, hauling, and everyday driving with long-lasting reliability.

Read more Read less

(RAS®) RoadActive Suspension 3611 | Fits Ford Raptor 2017-2021 | Chevy/GMC 2500&3500 | Nissan Titan | F150 2009-2014 2WD | F250 1973-2010

Leaf Spring Helpers

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Completely simplify load carrying without the maintenance or hassle. Works as you need it.

This Standard Duty(SD) kit adds 30-40% in strength to rear suspension and reduce squat by 1-2''.

Maximize everyday performance by reducing sway, body roll, greatly improved handling and stability

Maintain or improve loaded and unloaded ride quality without readjustments.

Estimated 1 hour installation with no special tools required. No Maintenance Required

(RAS®) RoadActive Suspension 4611-TD | Fits Toyota Tundra 1999-2021 | Non-HD Version

Leaf Spring Leaf Springs

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Authentic Made In USA RoadActive Suspension rear leaf spring upgrade by (RAS)RoadActive Suspension. Completely simplifies improved load and road handling without maintenance or hassle.

Provides up to 40-50% additional strength to rear suspension and improve squat by up to 2-3''

Maximize everyday performance by reducing sway, body roll, greatly improved handling and stability

Guaranteed to maintain or improve loaded and unloaded ride quality without need for readjustments

Comes as a set. Estimated 1 hour installation with no special tools or maintenance required

Roadmaster Active Suspension Heavy Duty 3611-HD: Fits 1990-2019 Chevy/GMC 2500 & 3500

Tow Bars

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RAS FAQs

Is RAS Legit?

Yes, RAS is a legitmate brand on Amazon. After conducting a comprehensive analysis of 10 customer reviews for RAS products on Amazon, we have determined its average rating. With a strong performance and good quality, RAS has received an average rating of 4.51 from numerous buyers, indicating that RAS are trustworthy and live up to their claims. Therefore, it is safe to make purchases from RAS on Amazon.

Amazon has strict policies and safety measures in place that ensure only legitimate sellers and products are allowed on their platform. It also provides a secure payment gateway and offers buyer protection, ensuring your transaction is safe. In the unlikely event that there's an issue with your purchase, Amazon's customer service and return policies are designed to protect your interests.

How to find more RAS products?

If you're interested in RAS and want to find more RAS products, you can follow the steps below:

Go back to FindThisBest's homepage.
Type RAS in the search box and hit Enter to see the search results.
Find and click the correct RAS to go to the new page.
Select the products you want in the RAS buying guide, and take a glance at the prices and features of the products.
View the products interest you on Amazon to read the customer reviews and check the ratings. Besides, you can hit the "brand" to find more RAS products.

How does findthisbest choose the top RAS products?

We analyze millions of RAS products reviews and customer reviews to recommend the best picks for most consumers. We have a professional team with decades of experience to test the products, which can help ensure that we provide our readers with accurate advice and best recommendations.

How can I purchase RAS products via FindThisBest?

Go to the RAS page.
Select the product you want in the RAS buying guide, and then view the product on Amazon. For example, if you are interested in the top 1 product Original (RAS®) RoadActive Suspension 4611-HD | Fi..., you can view it on Amazon page.
Place your order on Amazon.

Who are the manufacturers of the RAS products?

Most of the RAS products are produced by RoadActive Suspension and RoadActive Suspensoin. The manufacturers provide RAS with a steady supply of products, and they have a good cooperative relationship with each other.

What is the purpose of your brand guide?

Our mission is to provide you with the most up-to-date and objective information about the RAS products, helping you make more informed buying decisions. We recommend best choices of the products from the RAS brand, helping you make better shopping choices with less time and energy.

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