1. Vehicle Suspension
  2. RAS
  3. Leaf Springs
  4. Rear Axle Suspension Enhancement
  5. Standard Duty
Roadmaster Active Suspension Custom Leaf Spring Enhancement Kit

Roadmaster Active Suspension Custom Leaf Spring Enhancement Kit

Item # RAS2611-V
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Our Price: $468.95
Vehicle Suspension

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RAS Standard Duty Vehicle Suspension - RAS2611-V
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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. Lowest Prices for the best vehicle suspension from RAS. Roadmaster Active Suspension Custom Leaf Spring Enhancement Kit part number RAS2611-V can be ordered online at etrailer.com or call 800-298-8924 for expert service.
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RAS Vehicle Suspension - RAS2611-V

  • RAS
  • Leaf Springs
  • Rear Axle Suspension Enhancement
  • Standard Duty

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 assembly and bolt-on installation - no drilling, cutting, or welding required
    • Unit secures on top of the leaf spring and under the U-bolt plate
    • Hardware is included
  • Maintenance-free - adjustments and monitoring aren't needed once installed
  • Made in the USA


Specs:

  • Weight capacity: 2,000 lbs
    • Roadmaster Active Suspension will not increase your vehicle's weight-carrying capacity
  • 2-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.


Roadmaster Active 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

Adjusting Spring With Spacer

RAS is also customizable to your vehicle. During installation, the tension setting of the coil tension springs should be increased to exactly 25 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 the included 1mm white spacer as a gauge to measure the widening gaps between the coils.


Easy, Bolt-On Installation

This custom-fit kit is easy to assemble and 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.



2611-V RAS Custom Active Suspension System for OEM Leaf Springs - Rear Axle

Installation Details RAS2611-V Installation instructions

This Product Fits The Following Vehicles




Video of Roadmaster Active 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 RAS Vehicle Suspension - Rear Axle Suspension Enhancement - RAS2611-V Review

Speaker 1: Today we're going to take a look at the Roadmaster Active Suspension, custom leaf spring enhancement kit. Now this is a custom fit part. It is designed to fit many of the Chevy and GMC vans and some of the Coachman motorhomes, but because it fits so many different ones, years, makes, and models. I would recommend to go to our fit guide on our website, put in your year and model vehicle and it'll show you if this part will fit your application. Also on the product page of this part number, if you look at the very bottom, we do list quite a few of the applications that this will work on.Now this is a custom kit. It'll convert your vehicle's factory leaf springs into a mechanically active suspension system.

It actively strengthens your leaf springs for improved ride quality, with or without a load. It is an all in one suspension system. Improves stability, handling, and control. Helps eliminate 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.

And it improves your traction while braking and accelerating. It does use the variable rated coil tension springs here. That'll automatically adjust to your vehicle's load. It activates immediately to support the extra weight and it'll disengaged when unloaded, allowing your leaf springs to perform as intended.The customizable coil springs can be adjusted to your vehicle during installation to accommodate your towing or hauling needs. And this will help extend the life of your leaf springs, your shock absorbers, shackles, and even your tires.

They are a durable epoxy coated steel construction. They use corrosion resistant brackets on the ends of each unit. And they have a salt spray rating of more than 800 hours. It's a very easily assembly and bolt on installation. There's no drilling, cutting, or welding required.Basically the unit right here will secure on top of your leaf spring.

And then right here under the u-bolt plate. All the hardware you can see is included. It is maintenance free. Once you initially make your adjustments and monitor it, they aren't needed anymore, once it's installed the first time. This part is made in the USA. Weight capacity is 2000 pounds.Now one note I do want to recommend that the Roadmaster Active Suspension will not increase your vehicle's weight carrying capacity. It does come with a nice set of detailed instructions that'll describe how to install it. But that should do it for the review on the Roadmaster Active Suspension custom leaf spring enhancement kit.


Customer Reviews

Roadmaster Active Suspension Custom Leaf Spring Enhancement Kit - RAS2611-V

Average Customer Rating:  4.7 out of 5 stars   (128 Customer 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.

- RAS3611-B
by:

Review from a similar RAS in Vehicle Suspension


product came very fast! all was packaged extremely well and no damage to any of the items I ordered. I have not installed them yet but I am excited to get them on and hopefully see that they take that little extra sag out of my truck while pulling my travel trailer! watched many video's on the installation process and seems to be very simple and straight forward... thanks etrailer 307783



- RAS3611-Y
by:

Review from a similar RAS in Vehicle Suspension


I did a lot of research to determine if I should use airbags or the RAS. For my application the RAS was the better choice. No matter who I asked, no one had a negative comment about this product (RAS). I tow a Jayco Travel Trailer (TT - 9000lbs) and while I have towed boats for years I was new to the type of tongue and hauling weight that the TT exerts on my vehicle. Installation was a breeze. I spent more time preparing my tools and finding my 22mm wrench than I did installing the RAS. There are many Youtube videos on how to install the RAS and I do recommend you watch them. My ride (F150 Echoboost) was smoother while pulling the trailer; however, I didn't feel any change to my daily driving (positive or negative). If you're using a WDH, I recommend these over the airbags. The airbags can be counter intuitive since the WDH should fix most of the weight distribution and level. The RAS works well with all WDH's and once installed you don't have to make any changes to it, unlike the airbags. Get the RAS - you'll be happy you did. 399233



- RAS3611
by:

Review from a similar RAS in Vehicle Suspension


Repeat customer. Just installed my second set of Roadmaster Active Suspension springs. Have not towed with them yet; however the ride on my 2014 F150 6.5' bed pickup is noticably smoother. I expect the result when I do tow my travel trailer to be the same as with my previous truck - night and day difference (no more "white knuckle towing)! 319927



- RAS3611-B
by:

Review from a similar RAS in Vehicle Suspension


2018 F150 4x4 owners pay attention to this review. I received the order today and unfortunately it was the wrong kit for my vehicle. Even though etrailer confirmed that a RAS3611-B is correct for my truck, it is actually for a F150 4x2. I contacted etrailer and costumer service rep was great and verified that initially the same part number came up for my vehicle, causing the confusion. My mistake, etrailer mistake. The correct kit for a 2018 Ford F150 4x4 is RAS3611-Y. etrailer is splitting the cost of return shipping and my correct kit has been ordered. etrailer has great costumer service. 567680



- RAS3611-Y
by:

Review from a similar RAS in Vehicle Suspension


I have a 2016 F-150 4x4 with a 2 inch leveling kit and 305 tires. I am towing a 26RR Grey Wolf camper. I beleave it is 4992 lbs dry wait and 7775 lbs loaded. It is meant to be pulled with 1/2 ton trucks. Want to give all specs to be fair to the product. The product was easy to install. I adjusted spring to the black disk. When I hooked up the camper I notice my truck definitely squated less. The towing ride was less bumpy. That is it. It definitely did not improve fuel mileage. I am still at 8.5 miles to the gallon. That is on flat ground, I live in Florida. Still could not go over 65mph without camper feeling loose on the road. 3 stars for now until I tow other trailers. It was an improvement but not as much as I was expecting. Still going to go truck shopping for a bigger truck to solve my towing needs. Side note: truck looks great and rides way better without a trailer in tow. 2/22 inf 744719


Comments
The Roadmaster Active Suspension is designed to improve your trucks stability, handling, and control by keeping the truck level even when youre towing. When you say that your camper feels loose on the road, it sounds like your trailer starts to sway at speeds above 65 mph. The best solution for keeping your trailer tracking straight while rolling down the road is to use a weight distribution system with sway control. A weight distribution system will not necessarily improve your fuel mileage, but it will improve your experience towing your 30ft trailer. I have linked a help article on Weight Distribution systems for more information.
-- Victoria B - 01/27/2020

64875

- RAS3611-Y
by:

Review from a similar RAS in Vehicle Suspension


I own a 2017 F150 and placed the RAS3611-y kit last year. So far the ride improvement and the handling when pulling my equipment trailer with 7000# load is great. Air load adjusters would have been a mistake. Thanks George J. for a great product. No need for load levelers with this kit. 675401



- RAS3611-Y
by:

Review from a similar RAS in Vehicle Suspension


Worked as described and made a big improvement towing our travel trailer. 526259



- RAS3611-B
by:

Review from a similar RAS in Vehicle Suspension


After going back and forth with your install techs before purchasing they said what product to buy. I order it and doesn't fit my truck due to flipped rear axle I gave them pics so product was returned 411832


Comments
Hello David, I am sorry this product did not fit your truck. I spoke with our Roadmaster Techs and they told me this kit is not a fit for your truck since your truck suspension is not factory spec. This kit is only confirmed to fit the fit-guided vehicles with factory suspensions.
-- Sarah H - 08/02/2017

26776

- RAS3611-Y
by:

Review from a similar RAS in Vehicle Suspension


Thanks I put the springs on today’s. I have one question, I adjusted them to the 20% / one millimeter. Can they be adjusted to the 40% with truck sitting on ground if my trailer still has the bounce in it when hooked, or will I need to lift it off ground to readjust if needed. 590227


Comments
According to the manufacturer, when the suspension system is adjusted, the vehicle must be raised with the axle hanging free. This releases most of the spring tension.
-- Mike L - 12/12/2018

46660

- RAS4611TD
by:

Review from a similar RAS in Vehicle Suspension


Very easy to install and make a big difference towing a trailer! 717907



- RAS4611
by:

Review from a similar RAS in Vehicle Suspension


Haven't towed or hauled anything heavy with it yet. Unloaded it does help with body roll in turns. The ride is slightly improved as the truck doesn't bounce as much. 519027



- RAS3611-B
by:

Review from a similar RAS in Vehicle Suspension


After debating whether to go with these or airbags for a year I’m very happy with my decision to purchase these for my 2015 F150. Installation was simple, the difference in ride and towing is great, and there’s no maintenance. With 1,000lbs of trailer tongue weight and improved stability, I’m a happy camper! 583586



- RAS4611TD
by:

Review from a similar RAS in Vehicle Suspension


I really like the suspension add on. It keeps my truck level when towing our 9000 lb camper bumper pull. I get great stability on the road and it helps with handling the tongue weight on my 2013 Toyota Tundra 1/2 ton. It doesn't change the stiffen the suspension of my truck until I add weight. So, you don't notice it with normal driving. Installation went smoothly. The components were high quality and heavy duty. I recommend it. 577747



- RAS3611-Y
by:

Review from a similar RAS in Vehicle Suspension


I've only done a couple quick test drives with the product after installation. However so far am i initial impression is very positive. 450228



- RAS4514-SAT
by:

Review from a similar RAS in Vehicle Suspension


Prompt shipping, good price, happy. The Roadmaster was easy to install and works as advertised. Truck used to squat under weight. Now even with the riding mower in the back, I cant even tell its there. No squat and good handling. Unloaded there is no effect on ride. Cranked to max, raised the rear about an inch. Like them. 364203



- RAS3611-Y
by:

Review from a similar RAS in Vehicle Suspension


Just like your advertising said they were very easy to install. My ride has not been affected it still is a great ride for a truck. After the installation the rear end of my truck was 2” higher which will help when I hook up my camper, instead of sagging now my truck is level they are a great product . Thank you 540473



- RAS3614-T
by:

Review from a similar RAS in Vehicle Suspension


I have Nissan 2500 van that I have converted for traveling. Its gross weight is 9000 lbs, and with all that is in it everyday it weighs around 7000 lbs. It has enough weight it sags. I occasionally pull a trailer, which makes the sag even worse. I install the RAS, and it added about 1 1/2 inches to the truck height. I haven't pulled with it yet, but around town it rides great. Maybe, a very slight stiffening of the suspension, but nothing like what Timbren does to a truck. These things were terrible to install. The instructions said there wasn't much clearance on this vehicle, so take apart the unit and put the spring hooks on before lifting the vehicle. I thought I was going to have to unbolt the springs. Using a jack in the right place allowed me to finally getting them into place. It did require much frustration, and some choice language before I finally got them installed. I'm still looking forward to towing with them to see if the sag problem is fixed. I do recommend these. Again on a Nissan van they are a b*tch to install. 650068



- RAS4611
by:

Review from a similar RAS in Vehicle Suspension


I bought this based on I think the same product I bought several years ago for a 1997 Dodge Ram 1500. At that time, I bought a kit for for a Ram 2500 and was very impressed. I put a truck camper on the Dodge and I don’t think it settled an inch and when I drove it I hardly knew the camper was back there at all. No sway and no handling problems at all. This time I bought the kit for a Nissan Titan, pulling a 25’ travel trailer (about 7000#). The truck rear still settles and is not in a level attitude in transit without the weight distribution hitch. The suspension kit makes it better but not as much as I expected. 565780


Comments
Working just fine.
Jim - 10/02/2019

62634

- RAS3611-B
by:

Review from a similar RAS in Vehicle Suspension


I installed the product easily within less than an hour. On the test drive after, my truck rode smoother and more precise than prior to the install. I gained about 1-2 inches in lift on the back end, but have not towed with the setup yet. I would recommend this product. Very satisfied so far. 617063



- RAS3611-Y
by:

Review from a similar RAS in Vehicle Suspension


I have had this product a couple of months now with two trips pulling my travel trailer. It has helped in leveling out the truck/trailer so that less pressure is applied to the weight distribution system. Product is easy to install, I didn’t even need to take the tires off. It also is easy to adjust to fit different hitch weight. It did make my truck ride a little ruff but not to a point that is uncomfortable. I chose this product over air type products as I didn’t want to have to mess with it. I would recommend this product. 593932



- RAS3611-Y
by:

Review from a similar RAS in Vehicle Suspension


For anyone on the fence, I will say it does work well. I'm not sure it is worth it, but that's the price. Also, as others have said, finding your tools is the hardest part of the Installation. 2018 F150 Platinum pulling a 2018 Passport 2920bh 546842



- RAS4611
by:

Review from a similar RAS in Vehicle Suspension


We received suspension kit yesterday. My husband installed immediately. It took him a little longer than expected. But he is so happy!!! His Toyota Tundra is driving and handling so differently.... in a good way. We have not hooked up to trailer yet but I'm sure we will be totally happy. Good product! 408485



- RAS4611
by:

Review from a similar RAS in Vehicle Suspension


I've attached two pictures regarding the items I've recently purchased and installed upon my truck from etrailer.com 610664



- RAS3611-Y
by:

Review from a similar RAS in Vehicle Suspension


Delivery was on time and the product was good and ready to go! Jacked up the truck put it on stands and 1hr 30mins later I was driving off for a test run. Works just like it says it would. No body roll, takes off so much smoother, and I did about 40 over those big rolling neighborhood speed bumps and it was super smooth. Before RAS it would have a real bouncy feel over the speed bump now it attack the bump if you know what I mean. I tow a 25' trailer so I can't wait to see how much bounce is taken out when I'm driving over the dippy roads through the mountain pass here in WA. Thanks E-trailer! 313970


Comments
My initial review was was 5 star rating and after one year of use it still remains a 5 ??. I have a chance now to tow my 25’ travel trailer for a season and works great. It helps with proposing and reduced the little sag when I have her loaded up for a long trip. Highly recommend RAS with a WDH combination for smooth comfortable towing experience.
Doug D - 11/05/2017

30566

- RAS4611
by:

Review from a similar RAS in Vehicle Suspension


I received the item I ordered on time. Very nice to deal with. I plan to order from etrailer in the future 459351


Comments
Pulled our camper to Florida and back last winter. Doing the same again. The RAS worked great. I am definitely satisfied
Roger - 12/11/2018

46593
30
166
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Ask the Experts about this RAS Vehicle Suspension

  • Roadmaster Active Suspension Kit that Fits 2014 GMC Savana 3500 Van
    The Roadmaster Active Suspension kit part # RAS2611-V that you referenced is a confirmed fit for your 2014 GMC Savana Van. It will give you additional suspension support but it would stiffen the suspension up so it would not necessarily help with the issue you described. I suspect your issue is related to the rating of your weight distribution system. Which part number do you have? It sounds like you have a system rated too high for the tongue weight of your trailer.
    view full answer...
  • Best Suspension Enhancement for 2019 Chevy Express 2500 to Reduce Wheel Hop
    What you are experiencing is called wheel hop and we have exactly what you need to minimize that in your 2019 Chevy Express 2500. I highly recommend the Roadmaster Active Suspension Custom Leaf Spring Enhancement Kit; you will need either # RAS2613-M (for Passenger Vans) or # RAS2611-V (for Cargo Vans). This is the best suspension enhancement for your van because it is an active system which will absorb the force of the up-and-down movement that causes your van to bounce. That force...
    view full answer...
  • Recommendation to Improve Ride Quality Inside 2001 Chevy 1500 Conversion Van
    For your 2001 Chevy 1500 Conversion Van I recommend taking a look at the Roadmaster Active Suspension Enhancement Kit # RAS2611-V to greatly improve the ride quality for your passengers. This particular system is confirmed to fit your van and will essentially convert the existing leaf springs into a mechanically active suspension system that will eliminate wheel hop (so your passengers can stay attached to their seats) along with reduce the chances from that jarring sensation of bottoming...
    view full answer...
  • Available Types of Suspension Enhancement Kits for 2016 Ford F-250 Super Duty
    Although Roadmaster does not offer an active suspension kit like # RAS2611-V for your 2016 Ford F-250 Super Duty we do have many options in both front- and rear-axle suspension enhancement kits that include jounce spring, air bag and leaf spring products. The best one for you will depend on your specific needs and budget. Jounce springs like the Timbren kit # TFR250SDG are relatively cost-effective, simple to install (no drilling), maintenance-free and they provide independent progressive...
    view full answer...
  • Is RAS System for 2014 Chevy Express 3500 the Latest Version
    The RAS systems we offer for your 2014 Chevy Express van are the newest and most current version. The part # RAS2613-M for if it's a passenger van or # RAS2611-V for if it's a cargo van.
    view full answer...

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