FITS 2016 Ford F-150
Roadmaster Active Suspension Custom Leaf Spring Enhancement Kit

Roadmaster Active Suspension Custom Leaf Spring Enhancement Kit

Item # RAS3611-B

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Our Price: $449.00

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2016 Ford F-150

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RAS3611-B - Standard Duty RAS Vehicle Suspension
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  • RAS
  • Leaf Springs
  • Standard Duty
  • Rear Axle Suspension Enhancement
  • Constant Load
RAS vehicle suspension for your 2016 Ford F-150 are available from etrailer.com. Installation instructions and reviews for your Ford vehicle suspension. Expert service, and cheapest vehicle suspension price guarantee. etrailer.com carries a complete line of RAS products. Order your Roadmaster Active Suspension Custom Leaf Spring Enhancement Kit part number RAS3611-B online at etrailer.com or call 800-298-8924 for expert service.


  • All Info
  • Reviews (60)
  • Q & A (19)
  • Photos
  • Why etrailer?

2016 Ford F-150 - Roadmaster Active Suspension Custom Leaf Spring Enhancement Kit

2,000-lb Capacity. Convert your Ford F-150'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 during installation to accommodate your towing or hauling needs
    • Independently adjustable for side-to-side leveling of off-center loads
  • 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 under the leaf spring and around the factory U-bolts
    • 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
    • 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.


Diagram of RAS Installed

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. During installation, the coil tension springs can be adjusted to 2 different tension settings or anywhere in between for improved road handling and support. To do this, rotate the springs while keeping the threaded rod still. As you turn the spring, use one of the 2 included spacers as a gauge to measure the widening gaps between the coils. In order for the RAS units to work as intended, you must tension the coils to a minimum of 25 percent with the 1mm white spacer and no more than 40 percent with the 2mm spacer. The springs can also be independently adjusted to compensate for off-center loads such as a handicap lift.


Easy, Bolt-On Installation

RAS Once Installed

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, position the eye hook bracket so that it wraps around the top of the factory leaf spring eye. Then the axle bracket secures under the leaf spring and around the factory U-bolts on the other side of the leaf spring pack. 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.



3611-B RAS Custom Active Suspension System for OEM Leaf Springs - Rear Axle



RAS3611-B Installation InstructionsInstallation Details RAS3611-B Installation instructions


Customer Reviews

Roadmaster Active Suspension Custom Leaf Spring Enhancement Kit - RAS3611-B

Average Customer Rating:  4.8 out of 5 stars   (60 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:

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-B
by:

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



- RAS3611-B
by:
2018 Ford F-150

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-B
by:
2016 Ford F-150

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-B
by:
2017 Ford F-150

I received my order a day earlier than estimated. That was nice. But, when I started the installation the next day, I immediately encountered a problem when installing the enclosed bracket for the emergency brake cable. The instructions state the O.E. bolt is 10mm. On my 2017 F-150 the bolt is 13mm and does not fit in the recessed hole on the supplied bracket. I'll unfortunately be making a trip to the local hardware store to find a bolt that will work in order to complete the installation. 540518


Comments

Thanks for the info, I have spoken with my contacts at Roadmaster Active Suspension and they have not heard about this issue, but their development team is looking into it to see if they need to update the bolts included.

-- Rachael H - 07/13/2018

40878

- RAS3611-B
by:
2015 Ford F-150

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-B
by:
2015 Ford F-150

Installed on my 2015 F-150. Great product. Easy installation, took longer to get the wheels off than it did to put the springs in. Adjusted to the 2mm spacing and it raised rear fender well height by 1". Improved unloaded handling and towing. Have recommended to friends and will have on any of my future vehicles 565608



- RAS3611-B
by:

Easy to install. Ride is good with out a trailer. Etrailer was great fast shipping 621991



- RAS3611-B
by:
Roadmaster

This is the second time I have ordered from etrailer . Great service and fair prices. The Roadmasters were not as easy as I expected. A call to support got me straightened out. The job Roadmaster says is about an hour took me four. 369520



- RAS3611-Y
by:

Review from a similar RAS RAS in Vehicle Suspension


I’m impressed by the quality and engineering of this product. The person who designed it should win an award! I installed this on my 2013 F150 in preparation for hauling around my 1998 24’ coachman I’ve been working on fixing up all winter. I didn’t want a solution that would stiffen up the trucks ride because it’s very comfortable. I can’t feel any change in ride. Installation was very easy, took about an hour for everything and just a few tools. I haven’t towed with it yet but I did hook my trailer up and it didn’t squat like it did before. So far, very impressed. I’m glad I didn’t mess with airbags and all. 629033



- RAS4514-SAT
by:

Review from a similar RAS RAS in Vehicle Suspension


Had the kit installed today at the local Toyota dealer on a 2019 Tacoma. The truck had a greatly improved ride and seemed to have a more steady rear end feel. I plan on towing an RV in a few weeks and to the mountains in July, and have a greater confidence in performance. It did raise the back a good 2", it doesn't look bad, as I had expected. I firmly believe that this was the right choice, I can't wait to put it to use! 611821



- RAS3611-Y
by:

Review from a similar RAS RAS in Vehicle Suspension


Easy to install. The Roadmasters did not really change the ride of my 2017 F-150 when not towing. They made it much easier to level the truck when towing. 598577



- RAS4611
by:

Review from a similar RAS RAS in Vehicle Suspension


Install was effortless I set to 20% have not put under a load yet. purchased for added stability pulling my flat bed trailer with my tractor. body roll is definitely better thank you. 607627



- RAS4611
by:

Review from a similar RAS 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 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



- RAS4611
by:

Review from a similar RAS 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



- RAS3611-Y
by:

Review from a similar RAS 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

- RAS3611-Y
by:

Review from a similar RAS RAS in Vehicle Suspension


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



- RAS4611TD
by:

Review from a similar RAS 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
by:

Review from a similar RAS 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



- RAS4611
by:

Review from a similar RAS 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

- RAS4611
by:

Review from a similar RAS RAS in Vehicle Suspension


I installed this kit on a 2017 Nissan Titan and can be installed very easy. The handling on my truck has improved tremendously. I would recommend this product to everyone. 528359



- RAS4611
by:

Review from a similar RAS 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-Y
by:

Review from a similar RAS 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



- RAS4611TD
by:

Review from a similar RAS RAS in Vehicle Suspension


Mounted on 2015 Tundra ,pull heavy car trailer and toy box these work great and are adjustable. Unlike airbags they won't leak and much easier install. They helped level truck when I'm loaded and resolved some front braking issues with the sensors on these new vehicled. 319138



- RAS4611
by:

Review from a similar RAS RAS in Vehicle Suspension


arrived as expected. Extremely easy to install as the spring assemblies were completely assembled. Took longer to take tires on and off than to install spring assemblies. Effect on ride when towing has yet to be determined; I am expecting a big improvement in ride. 569774



- RAS4611
by:

Review from a similar RAS RAS in Vehicle Suspension


I order these on Friday afternoon and I received them Monday afternoon. I had watched the clip on installation before ordering and it looked pretty easy. The installation instructions are very self explanatory and they were easy to install. From the time I starter until I had the tools picked up and put away it was about an hour and that was with taking a few phone calls. My initial ride after installing these was very good. I drove over a fairly rough road and tracks. My real test will come when I hook up to my trailer and load my tractor or car. I may have to readjust to a heavier setting but it is there if needed. 438869



- RAS4611
by:

Review from a similar RAS RAS in Vehicle Suspension


ordered on tuesday arrived on friday Free shipping that was fast. Installed on Saturday morning. after I got the truck on the Jackstands took all if 20 minutes to install. haven't towed anything yet going camping this coming weekend will report more, truck rides better unloaded that before, great customer service 508437



- RAS4611
by:

Review from a similar RAS 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



- RAS3611-Y
by:

Review from a similar RAS 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

- RAS3621
by:

Review from a similar RAS RAS in Vehicle Suspension


High quality components. We installed the Roadmasters on my 2000 Ford Excursion yesterday. The instructions for installation were clear and concise. The installation took about 45 min. A god bit of that time spent on jacking, wheel removal and replacement. Not a particularly difficult installation. My impressions after test drive: I think the ride was slightly harsher than before installation, but nothing significant. The sway control was greatly improved. Surprisingly, the vehicle seems to handle bumps better, and unexpectedly, braking seems better. All in all, a good upgrade at a reasonable price. Jim 563475



- RAS3611-Y
by:

Review from a similar RAS 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



- RAS3611-Y
by:

Review from a similar RAS RAS in Vehicle Suspension


Outstanding service 473151



- RAS3611-Y
by:

Review from a similar RAS RAS in Vehicle Suspension


As with many other reviewer's I researched several different brands and types of systems. The springs have helped out immensely with the tongue weight I have to pull with my F-150. I notice a 2 to 3 inch difference in the ride height with the springs on while towing approximately 1200 to 1400 pounds of tongue weight. It also takes out the bouncy feel from truck to trailer on non-smooth roads. The installation is very simple and quick. I highly recommend this product. 443416



- RAS3611-Y
by:

Review from a similar RAS 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-Y
by:

Review from a similar RAS RAS in Vehicle Suspension


Installed the Roadmaster auxiliary springs on a 2018 F150 Screw FX4 (max tow package; 7000 lbs rated payload capacity) because I've been unhappy with how much the rear squats when towing an enclosed car trailer (I use a weight distributing hitch), and a bit displeased with how the truck handles bumps, dips, etc. For whatever reason, Ford installed a weaker leaf spring pack on this truck / model (one fewer leaf spring than on earlier model I owned with a 7200 lbs payload capacity). In general, maybe because of the FX4 package, maybe because of the smaller wheels on this truck than my older F150 (18" vs. 20"), there is much more range of uncontrolled motion in this 2018, and much more bounce and jarring over uneven pavement. In my opinion, the rear leaf spring pack and shocks -- on this truck -- are not well matched. After considering air bags or an auxiliary leaf spring, I contacted Etrailer and chatted with a rep, who guided me to this Roadmaster unit. The rep was very helpful and took the time to discuss how I used my truck in order to determine the best option for me. Since I do not tow frequently (12-15 x per year), and my tongue wait varies between 600 - 700 lbs, the Roadmaster seemed to be a good middle-of-the road option over air bags, which require constant monitoring (not a big deal if you use your truck all the time). I wanted a "set it and forget it" option, and the Roadmaster was designed to be just that. The units installed very easily (I have access to a lift), the instructions are clear, and there's a very helpful video available on Etrailer's site. Most importantly, the ride smoothed out immediately as compared to stock. I set the units for the maximum payload increase rating (40%), which raised the rear end enough that the truck now looks a bit like a late '60s - 70s American muscle street rod (not a look I was trying to achieve), but the ride is far superior to stock. The truck no longer bounces, jars, or deflects to any significant degree, but the ride remains supple and smooth (I know, strange description for a truck). This is not to say that the stock ride quality was generally bad, but it certainly needed improvement for my tastes and needs. Unfortunately, I've not had the opportunity to tow with the auxiliary springs at the time of this review, but I am certainly optimistic that the ride height will now be level, and the ride quality improvements will be retained while towing. This is a good product, well made and supported, and Etrailer was a pleasure to work with. Very helpful sales representatives, fast shipping, and good customer support. 538434



- RAS4514-SAT
by:

Review from a similar RAS 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 RAS in Vehicle Suspension


Big improvement in my trailer towing. I have an F150 and tow a 36' 9000lb travel trailer. My trailer is on the larger size for my truck and these springs have corrected the trailer sway I was experiencing. Easy to install and I have them tightened to the 40% additional load spacer which did raise the rear of my truck by an inch. So I've also had to readjust the WD hitch settings, which may need some minor tweaking. But this suspension kit is working as advertised by reducing the trailer sway. Now my wife can relax a little more! 515597



- RAS3611
by:

Review from a similar RAS RAS in Vehicle Suspension


I have been using Roadmaster Active Suspension for a year now. The product works as advertised and has greatly improved the stability of my F-150 pulling a 7500 travel trailer. 444685


Comments

I have my RAS system for two years now and it performs as well the day I installed it.

Chris - 10/21/2018

44879

- RAS3611-Y
by:

Review from a similar RAS 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



- RAS3611-Y
by:

Review from a similar RAS RAS in Vehicle Suspension


I put my active roadmaster springs in today. It took about an hour. They raised the back up 2.5 inches. I drove about 50 miles in rough pastures and roads, they made the ride much better and put a smile on my face. 466567



- RAS4611
by:

Review from a similar RAS RAS in Vehicle Suspension


etrailer has amazing customer service and after talking through a few options for my 2015 Silverado Crewcab shortbed, we decided this product would be the best fit for what I wanted. The RAS comes put together and installs very quickly. It took me longer to get my tools rounded up and the wheels off than to install the RAS. I did set mine to 40% using the thicker gauge for the coils and it appears that added a little height to the back of the truck. No biggie as I planned on leveling blocks later anyway. The ride is definitely firmer and everything the product states about mitigating body roll, bumps and adding traction has held true so far. While I think the product is a little spendy compared to other options, it does more and is well worth the cost. I haven't had a chance to load the bed down yet, but the experience has been very positive unloaded. Thanks etrailer for excellent customer service and great pricing. 542212



- RAS4611
by:

Review from a similar RAS RAS in Vehicle Suspension


Install was fairly easy, 1 1/2 to 2 hrs. Raised rear of 15 Silverado 1500 1 1/2”. Towed camper 50 miles, much improved. 525890



- RAS3611-Y
by:

Review from a similar RAS RAS in Vehicle Suspension


Worked as expected. Very pleased. 658908



- RAS3611-SLHD
by:

Review from a similar RAS RAS in Vehicle Suspension


Great product! It does what it advertises and is a breeze to install on my F-150 but a little harder on the 350 since you have to remove the overload spring. Works great helps keep truck perfectly level when towing my 10k lb trailer. Highly recommend. 654976



- RAS3611-Y
by:

Review from a similar RAS RAS in Vehicle Suspension


Excellent product as always from one of my favorite companies. The items (including this one are always as described. This provides leveling for my 2018 F150 while towing and makes a huge different. 654097



- RAS3611
by:

Review from a similar RAS RAS in Vehicle Suspension


Excellent product and ease of installment was amazing. 653516



- RAS3614-T
by:

Review from a similar RAS 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 RAS in Vehicle Suspension


I installed the Roadmaster suspension kit about 3 weeks ago, and it's working exactly as advertised. Installation was very straightforward (the video was extremely helpful), and I'm very happy with the results. Prior to this, I had about 1 - 1.25 inches of 'squat', now it's 0.25 inches. Great product! 647061



- RAS3611-S
by:

Review from a similar RAS RAS in Vehicle Suspension


Installed in four hours. Missed the kit for 4x4. Had to disassemble and reassemble. My fault. Raised the rear end by 2 inches. Lots of creaking noises with new installation. Truck rides better and seems higher after installation. Tongue pull steel horse trailer sagged rear end 1 inch. Hoping travel trailer with weight distribution bars will not sag the rear end at all. So far well pleased with the results. Interesting system. 628336


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  • Rear Suspension Enhancement Recommendations For A 2016 Ford F-150 XLT
  • You have several options to choose from in order to enhance the rear suspension of your 2016 Ford F-150 XLT while towing. Each of which has their own individual pro's and con's The best way to combat vehicle sag when towing a trailer is a weight distribution system because it will distribute the weight on the rear axle across the entire vehicle and trailer. Choosing the right system is very important. You will first start off by measuring the total tongue weight of your ready to tow...
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  • Recommended Suspension Enhancement for 2016 Ford F-150 with 1,500 Pound Trailer Tongue Weight
  • The 1,000 pound capacity SumoSprings Solo Custom Helper Springs # SSR-117-40 for 4 Wheel Drive and # SSR-116-40 for 2 Wheel Drive referenced in your question will offer a smoother empty ride in your 2016 Ford F-150 than a higher rated alternative spring. It is important though to keep in mind that any weight coming from behind the rear axle of your F-150 and from the trailer hitch itself should also be considered when choosing a suspension enhancement system, as this will be included to...
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  • Adding Suspension Helper Springs to Reduce Sway on a 2017 Ford F-150 Short Bed
  • What kind of trailer are you towing? The best thing to use to prevent sway is a weight distribution system with built in sway control. If you are interested in that then let me know the gross trailer weight if it is a travel trailer (bumper pull). If it is a 5th wheel or gooseneck trailer then there is no sway control for those. For your truck though adding some suspension enhancement will help some. Roadmaster active suspension # RAS3611-Y is a good option because it does offer some...
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  • How to Eliminate Porpoising when Towing Trailer with 2018 Ford F-150
  • I have a great solution to the porpoising and bounce you are experiencing when towing with your 2018 Ford F-150. I recommend taking a look at the Roadmaster Active Suspension Custom Leaf Spring Enhancement Kit # RAS3611-Y if you have a 4WD or # RAS3611-B if you have the 2WD model. This will essentially convert your truck's leaf springs into a mechanically active suspension system. It will drastically improve the stability and control of your ride as well as eliminate that porpoising...
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  • Suspension Enhancement Recommendation for 2019 Ford F-150 for Everyday Driving and Towing
  • There is a perfect option for a suspension enhancement system that will work to benefit your 2019 Ford F-150 for everyday driving as well as towing; I strongly recommend the Roadmaster Active Suspension Custom Leaf Spring Enhancement Kit, and correct one will depend on if your F-150 has Two-Wheel Drive or Four-Wheel Drive - Two-Wheel Drive: Roadmaster Active Suspension Custom Leaf Spring Enhancement Kit # RAS3611-B - Four-Wheel Drive: Roadmaster Active Suspension Custom Leaf Spring...
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  • Correct Roadmaster Active Suspension Kit for 2018 Ford F-150
  • There is a Roadmaster Active Suspension Kit that will work for your 2018 Ford F-150 but # RAS3611 is not a fit for your truck. The exact model number of Roadmaster Active Suspension Kit you want for your F-150 is going to be # RAS3611-B.
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  • Recommended Suspension Enhancement System for 2018 Ford F-150 Dropped 4 Inches
  • The Timbren Rear Suspension Enhancement System # TFR1504E is a fit for a factory height 2017 or 2018 Ford F-150. To drop the truck height will require custom fabrication as you stated. There isn't a spacer, just the brackets and the jounce spring, so this may not be the best option for you. My recommendation is to use a system that doesn't require that extra fabrication. You can use the Roadmaster Active Suspension Kit # RAS3611-B which will give you a mechanically active system to...
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  • 5th Wheel Trailer Hitch for 2018 Ford F-150 5-1/2 Foot Bed and Grand Design Reflection 150 Series
  • The Lippert Turning Point pin box on your trailer means that you will need a fixed 5th wheel hitch for your 2018 Ford F-150. The Curt A16, # C16120, is a great option for you. This hitch is rated at 16,000 pounds, so it has plenty of capacity for the Grand Design 150 series of trailers. The dual jaw design is safe and secure and the cushioned head improves ride quality. For the best fit with your Turning Point pin box I also recommend using custom wedge # C16992. For an installation...
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  • Suspension Enhancement for 2016 F-150 2WD Towing 6K Trailer with Weight Distribution
  • While it is okay to use aftermarket jounce springs like SuperSprings # SSR-116-47, in your application towing with weight distribution the best item to reduce sway in your F-150 is a leaf spring kit, Roadmaster Active Suspension (RAS) Custom Leaf Spring Enhancement Kit # RAS3611-B. Jounce springs offer no adjustment and they operate only once they engage with the axle. On the other hand, the USA-made Roadmaster RAS system activates immediately, and at the tension you select when you...
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  • Sway Control Options For A 2017 F-150
  • I do have a sway control option available for you, however, the Roadmaster Rear Anti-Sway Bar for Pickup Trucks part # RM-1139-177 is not confirmed to fit a 2017 F-150. Instead, I recommend using Roadmaster Active Suspension Kit part # RAS3611-B for 2WD and part # RAS3611-Y for 4WD models. The RAS system works to not only reduce sway but also eliminates bottoming out, axle wrap and wheel hop. I have attached a video review of this product for you.
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  • Recommended System for Better Sway Control of 30 Foot Travel Trailer
  • The Roadmaster Active Suspension Kit # RAS3611-B will help with the vehicle side of things by assisting with the rear suspension which will have some effect on the ride of the trailer. The much bigger issue with sway is that your trailer is very long. Even with a weight distribution system and a friction sway bar, you will have sway issues because for trailers over 26 feet, they recommend 2 friction sway bars. I've attached an article to help. I highly recommend that you look...
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  • Suspension Enhancement on a Lowered 2 Wheel Drive 2016 Ford F-150
  • We do have suspension enhancement that may work on your lowered 2016 Ford F-150 but it isn't an air bag kit. The Roadmaster Active Suspension Kit # RAS3611-B may work for you. You'll need to measure and make sure you have at least 4 inches of clearance between the axle and the rear eye of the spring. And also the hook bracket of the RAS needs to be able to fit over the rear eye without any interference. If you need to, send me some pictures of the springs on your truck and I'll...
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  • Suspension Enhancement Recommendation for 2017 Ford F-150 Towing Trailer
  • Sounds like you may be over the towing capacity of your 2017 Ford F-150 if air bags and a weight distribution system aren't cutting it for you. Before you proceed you should verify that you are within the capacities of the truck. For what you're looking for I would go with the Roadmaster Active Suspension kit # RAS3611-B. We had a guy come back with a truck just like yours who installed this kit and reported that it worked well on his truck with a weight distribution system. I attached...
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  • Roadmaster Active Suspension Kit Recommendation for Reducing Sag on 2015 Ford F-150 when Towing
  • Yes, the Roadmaster Active Suspension Kit # RAS3611-B for your 2015 Ford F-150 would be exactly what you would need to help eliminate the sag you are experiencing with your heavier trailer and it will also greatly reduce side to side sway. This kit also install very easily.
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  • Rear Suspension Enhancement Options for a 2017 Ford F-150 With Lowering Kit Installed
  • The best option for you to add some load assistance to your 2017 Ford F-150 would be to use a Roadmaster Active Suspension Kit. You will want to use part # RAS3611-Y if your F-150 is 4-wheel drive, and part # RAS3611-B for a 2-wheel drive model. I contacted our other manufacturers about air helper springs and they said that the air helper systems will not be able to fit with the 2.5 inch drop on your F-150.
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  • Best Suspension Enhancement Kit for 2019 Ford F-150 That Requires no Maintenance
  • The best suspension enhancement system for your 2019 Ford F-150 is the Roadmaster Active Suspension Custom Leaf Spring Enhancement Kit because it works continually to reinforce your leaf spring suspension, will not impact your unloaded ride, and requires zero maintenance after you install it. The correct Roadmaster Active Suspension Kit for your 2019 Ford F-150 will depend on if you have a 2-Wheel Drive or 4-Wheel Drive: - 2-Wheel Drive: Roadmaster Active Suspension Custom Leaf Spring...
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  • Recommended Suspension Enhancement for 2016 Ford F-150 that's Rocking/Swaying when Driven Unloaded
  • I have a solution for you but most of the suspension enhancement systems, like Timbrens, are designed to help when carrying a heavy load and are not as effective when the truck is unloaded. The RAS Suspension Kit # RAS3611-B upgrades your vehicle's factory suspension for improved stability, handling, and control. The mechanically active system eliminates axle wrap and wheel hop. This comes fully assembled and is easy to install. Another option that is the SuperSprings # SSA28. This...
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  • Is There An Air Suspension Kit For A 2015 Ford F-150 With A 6 Inch Lift?
  • I reached out to my contact at Air Lift and there is a way to make an air suspension work on your 6 inch lift, but they can't confirm it's safety and it would require buying a kit, a spacer kit, and replacement air bags to make functional. They do not have a confirmed and tested fit for raised trucks nor do their competitors, so they can't give a recommendation so neither can I. For a confirmed method to add suspension relief to your Truck and remove any sag, I recommend the Roadmaster...
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  • What Would Cause Bouncy Ride Quality When Towing Trailer with Weight Distribution System
  • If you are experiencing a bouncy ride condition with your weight distribution system that indicates that you have a WD system that is rated too high for the tongue weight of your setup. If you use a system rated to high you end up with a harsh or bumpy ride quality and if you go with a system rated too low you end up with an ineffective system. There isn't a product out there that will fix this like the Roadmaster kit you mentioned. The best way to pick out a weight distribution system...
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Expert Research:
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