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  1. Vehicle Suspension
  2. RAS
  3. Leaf Springs and Helper Springs
  4. Towing/Load Leveling
  5. Rear Axle Suspension Enhancement
  6. Standard Duty
RoadActive Suspension Custom Leaf Spring Enhancement Kit
RAS

RoadActive Suspension Custom Leaf Spring Enhancement Kit

Part Number: RAS2516
In Stock
$539.00
Vehicle Suspension

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2,000-lb Capacity. Convert your vehicle's leaf springs into a mechanically active suspension system. RAS adjusts to your load to level your ride. The system also increases stability, handling, and control by improving traction and reducing sway. Great Prices for the best vehicle suspension from RAS. RoadActive Suspension Custom Leaf Spring Enhancement Kit part number RAS2516 can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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RAS Vehicle Suspension - RAS2516

  • Leaf Springs and Helper Springs
  • Towing/Load Leveling
  • RAS
  • Rear Axle Suspension Enhancement
  • Standard Duty
  • Suspension Only
  • Helper Springs

2,000-lb Capacity. Convert your vehicle's leaf springs into a mechanically active suspension system. RAS adjusts to your load to level your ride. The system also increases stability, handling, and control by improving traction and reducing sway.


Features:

  • Custom kit converts your vehicle's factory leaf springs into a mechanically active suspension system
    • Actively strengthens leaf springs for improved ride quality with or without a load
  • All-in-one suspension system improves stability, handling, and control
    • Eliminates axle wrap, wheel hop, and bottoming out
    • Reduces dangerous sway and body roll while cornering
    • Keeps your ride level when towing or hauling a heavy load
    • Improves traction while breaking and accelerating
  • Variable-rated coil tension springs automatically adjust to your vehicle's load
    • Activate immediately to support the extra weight
    • Disengage when unloaded, allowing your leaf springs to perform as intended
  • Customizable coil springs can be adjusted to your vehicle during installation to accommodate your towing or hauling needs
  • Helps extend the life of leaf springs, shock absorbers, shackles, and even tires
  • Durable, epoxy e-coated steel construction
    • Corrosion-resistant brackets on the ends of each unit have a salt spray rating of more than 800 hours
  • Easy, bolt-on installation - no drilling, cutting, or welding required
    • Unit secures on top of the leaf spring and under the U-bolt plate
    • Fully assembled kit and hardware are included
  • Maintenance-free - adjustments and monitoring aren't needed once installed
  • Made in the USA


Specs:

  • Weight capacity: 2,000 lbs
    • RoadActive Suspension will not increase your vehicle's weight-carrying capacity
  • 5-Year warranty
  • 30-Day money-back guarantee


All-In-One Suspension System

When towing or hauling a heavy load, you may encounter a number of problems that can make your driving experience difficult or dangerous, such as sway, body roll, or bottoming out. When your vehicle is weighted down, your factory leaf springs can't counteract these problems to the extent that they are supposed to. The weight will overpower the leaf springs and cause them to twist or flatten out. When that happens, they cannot support, level, or stabilize your vehicle effectively. Additionally, because your factory leaf springs are passive, they won't begin to tackle problems such as sway until those problems have already started.


RoadActive Suspension (RAS) kits enhance those passive leaf springs by converting them into a mechanically active, all-in-one suspension system. RAS kits have variable-rated coil tension springs that automatically adjust to your heavy load. Other suspension systems only solve a few problems and usually at the expense of other improvements your factory leaf springs may need. RAS, on the other hand, is a unique kit that provides everything you want in a suspension system without any trade-offs. It eliminates bottoming out like air springs, reduces sway and body roll like sway bars, keeps your ride level like helper springs, and improves traction and braking control like traction bars. This improves your vehicle's stability, handling, and control while you are towing or hauling, as well as when your vehicle is unloaded. RAS also makes your overall driving and towing experience safer and more comfortable, which greatly lessens driver fatigue.


How RAS Works

Close-Up of RAS Tension Spring

Each RAS unit has a powerful variable-rated coil tension spring that converts your passive leaf spring into a mechanically-active system. Once your vehicle is loaded, the tension springs immediately activate to absorb and support the weight. This allows your leaf springs to maintain their bowed position and keeps them from flattening out or flipping over, which greatly hinders their ability to bear a heavy load. The tension springs are variable-rated, which means that the heavier your load is, the more assistance they provide to your leaf springs. Because of this design, RAS reacts instantaneously, whereas hydraulics, air springs, and other suspension systems take time to react. And unlike your factory leaf springs, RAS stops sway and sag before they even start to happen. Additionally, when your vehicle is unloaded, the tension springs disengage, allowing your leaf springs to perform as intended without hardening your ride. RAS won't hinder your leaf springs' movement, nor will it cause any friction between any of the brackets.


Eliminates Axle Wrap and Wheel Hop

RAS Eliminates Axle Wrap

When under a heavy load, leaf springs are especially susceptible to axle wrap, which can cause wheel hop. Wheel hop is when the tires lose their grip on the road, causing a jarring, up-and-down movement. Axle wrap occurs when the circular motion of the tires cause the leaf springs to twist or rotate. If the leaf springs twist far enough, wheel hop can occur. RAS stabilizes your leaf springs by absorbing the force of the load they're trying to support. This eliminates axle wrap and wheel hop, as well as prevents your vehicle from bottoming out. Because of this, less strain is put on your vehicle. And by reducing some of this wear and tear, RAS helps extend the life of your leaf springs, shock absorbers, shackles, and even tires.


Reduces Sway and Body Roll

RAS eliminates sway and body roll

When driving along a curve while towing or hauling a heavy load, the back end of your vehicle or trailer can start to shift with that weight. If your factory leaf springs have flattened or twisted under this load, they won't be able to prevent it from shifting. Because of this, your trailer will sway away from your vehicle. This makes driving challenging and dangerous, as it increases the risk of body roll, which is when your vehicle drastically leans to one side. This can often cause you to completely lose control of your vehicle. Body roll is especially prevalent with multi-passenger vans and vehicles towing long campers, trailers, or boats. RAS provides a much safer ride by reinforcing your factory leaf springs and stabilizing your load. This helps prevent sway from occurring and reduces the chance of body roll while cornering, turning, and swerving. RAS also lessens the rocking motion that happens during windy conditions or when a semi passes by on the road.


Levels Your Ride and Improves Traction

RAS Levels Your Ride

When your vehicle is overloaded, the bulk of the weight transfers to the rear axle. Your factory leaf springs then become overwhelmed by this weight, as they are not strong enough to support it. This causes the back end of your vehicle to sag and the front end to rise, which means that the front tires have lost some of the grip they need with the road. In addition to loss of traction, it can also cause poor headlight aim, unintentional swerving, and an extremely bumpy and uncomfortable ride. RAS bolsters your factory leaf springs and enables them to provide support for your load without compromising ride quality or comfort. This keeps your ride level from front to back whether you are hauling a load in the bed or towing a boat, trailer, or camper. RAS also ensures that your tires have the traction they require while braking and accelerating, which improves the overall driving experience.


Customizable Coil Tension Springs

RAS is also customizable to your vehicle. During installation, the tension setting of the coil tension springs should be increased to exactly 40 percent for improved road handling and support. To do this, rotate the springs while keeping the threaded rod still. As you turn the spring, use a 2mm quarter as a gauge to measure the widening gaps between the coils.


Easy, Bolt-On Installation

This custom-fit kit comes fully assembled and is easy to install. Each RAS unit simply bolts onto your factory leaf spring with the included hardware, and drilling, welding, and cutting aren't required. First, the axle bracket secures on top of the leaf spring and under the factory U-bolt plate. Then, position the eye hook bracket so that it wraps around the top of the factory leaf spring eye. Once the maintenance-free RAS units are fully installed, you won't need to monitor them as you would with air springs.


Corrosion-Resistant Steel Construction

RAS Construction Close-Up

RAS is extremely durable and corrosion-resistant. The units are constructed of high-grade alloy steel, and they have an epoxy e-coat on the coil springs to provide extreme corrosion resistance. The brackets on the ends of each unit resist the effects of water and other elements, and they have a salt spray rating of more than 800 hours.



2516 RAS Custom Active Suspension System for OEM Leaf Springs - Rear Axle

Installation Details RAS2516 Installation instructions

This Product Fits The Following Vehicles




Video of RoadActive Suspension Custom Leaf Spring Enhancement Kit

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.




Video Transcript for An In-Depth Look at the RoadActive Suspension Custom Leaf Spring Enhancement Kit-RAS2516

Jeff: Hello, everybody. This is Jeff at etrailer.com. Today, we're going to take a look at this Roadmaster Active Suspension Custom Leaf Spring Enhancement Kit. Now, this is a custom fit part. It is designed to fit the 1983 to 2012 Ford Ranger vehicles and the 1995 to 2010 Mazda V-series trucks. And on a custom fit part like this, I always like to recommend for you to go to our website.

Use our fit guide. Put in your year and model vehicle. It'll show you if this'll work for your application.Now, this custom kit will convert your vehicle's factory leaf springs into a mechanically active suspension system. It'll actively strengthen the leaf springs for improved ride quality with or without a load, and it is an all-in-one suspension system, which will improve stability handling and control. It helps eliminate axle wrap, wheel hop, and bottoming out, and it reduces dangerous sway and body roll while cornering.

It does help keep your ride level when you're towing or hauling a heavy load, and it does improve traction while you're breaking and accelerating.It does use a variable-rated coil tension spring, which automatically adjusts to your vehicle's load. It activates immediately to support the extra weight, and it will disengage when it's unloaded, allowing your leaf springs to perform as intended. The customizable coil springs can be adjusted during installation to accommodate your towing or hauling needs, and they are independently adjustable for side-to-side leveling of any off-center loads. This kit will help extend the life of your leaf springs, your shock absorbers, your shackles, and even your tires. You can see it is a nice durable epoxy e-coated steel construction.

The corrosion-resistant brackets on the ends of each unit have a nice salt spray rating of more than 800 hours, and it is an easy bolt-on installation. There's no drilling, cutting or welding required.The eye hook bracket here wraps around the top of the factory leaf spring eye, and in the axle bracket on this end, they secure on top of the leaf spring and under the factory U-bolt plate. When you do get this, it's a fully assembled kit and all the hardware is included, and it is maintenance-free. The adjustments and the monitoring are done once you first install this, and then they aren't needed anymore after they're installed. This part is made in the USA.

Specs on it, the weight capacity is 2000 pounds. Now, you do want to remember the Roadmaster active suspension will not increase your vehicle's weight-carrying capacity. But that should do it for the review on the Roadmaster Active Suspension Custom Leaf Spring Enhancement Kit.

Ratings & Reviews

4.7

507 reviews
2,000-lb Capacity. Convert your vehicle's leaf springs into a mechanically active suspension system. RAS adjusts to your load to level your ride. The system also increases stability, handling, and control by improving traction and reducing sway.

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See what our Experts say about this RAS Vehicle Suspension

  • Can RAS and Timbrens Be Used Together On a 2011 Ford Ranger
    The RoadActive Suspension Custom Leaf Spring Enhancement Kit part # RAS2516 which is a fit for a 2011 Ford Ranger will take place of any other suspension enhancement system. It would indeed be overkill to pair these with the Timbren Rear Suspension Enhancement System part # TFRR050A. The Timbrens will likely not even engage with the RAS installed unless there is a very heavy tongue or load in the bed. In which case, the ride would be way too stiff and uncomfortable
    view full answer...
  • Suspension Enhancement Recommendation for 2002 Ford Ranger
    The best suspension enhancement available for your 2002 Ford Ranger is the RoadActive Suspension kit part # RAS2516. This kit gives the suspension support you are looking for, is easily adjustable, and unlike other options improves ride quality and handling when towing and when not towing as well.
    view full answer...

Do you have a question about this Vehicle Suspension?


Info for this part was:

Employee Jeff D
Installed by:
Jeff D
Employee Jameson C
Expert Research:
Jameson C
Employee Mary K
Written by:
Mary K
Employee Wilson B
Updated by:
Wilson B
Employee Noah M
Updated by:
Noah M

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