RoadActive Suspension Custom Leaf Spring Enhancement Kit - Heavy Duty
(21 reviews)
Price: $589.00
In Stock
RoadActive Suspension Custom Leaf Spring Enhancement Kit - Heavy Duty
Item # RAS94FR
Our Price: $589.00
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- Reviews (21)
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RAS Vehicle Suspension - RAS94FR
- Leaf Springs
- Rear Axle Suspension Enhancement
- Heavy Duty
- RAS
3,000-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:
- Heavy-duty 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: 3,000 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
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
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
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
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. 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
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 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-BHD RAS Custom HD Active Suspension System for OEM Leaf Springs - Rear Axle
Installation Details
This Product Fits The Following Vehicles
- 2015 - 2024 Ford F-150 2 Wheel Drive
Customer Satisfaction Score:
89% were satisfied with this product
11% of customers were not satisfied
- Wrong item was ordered
- Arrived Damaged
Customer Reviews
RoadActive Suspension Custom Leaf Spring Enhancement Kit - Heavy Duty - RAS94FR
Average Customer Rating: 4.9 out of 5 stars (21 Customer Reviews)
3,000-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.by: Michael12/24/2020
2016 Ford F-150
Installed on my 2016 F-150 XLT. Truck Only Report: I'm very pleased with my unloaded truck ride. My truck now takes bumps much better and feels like it hugs the road better. On my wife's first ride, she said, "It feels like it rides smoother." I agree.
Although I have not towed my travel trailer yet, we will next week, when I hooked it up to my truck, all of my measurements are much better. With my WD hitch connected, all of my truck measurements are very close to equal to the unloaded, pre-RAS, measurements. In other words, with the trailer attached, much truck sits almost exactly at factory unloaded level. I'm really looking forward to giving a good run next week.
by: Robert 08/04/2022
Ford F-150
Gave my truck the lift it needed and even on heavy loads she sits level and drives perfect! Best deal!
2019 F150 2wd
Highly recommend even if bot towing it makes all the difference daily driving as well!
Robert M.
8/5/2023
Continues to work and perform as well as the day I installed! It has improved my handling during towing and heavy loads without the need to change struts or shocks or springs!
by: Ron 08/04/2022
I received fantastic customer service from Amy! She addressed all my concerns and did the research to make sure it fit my truck.
My order arrived on time and was shipped right away I couldn’t be happier!
Ron
8/5/2023
It has been great! One of my camping friends bought them too and he is very happy as well. Thank you again for your great customer service!
by: Jack 06/22/2022
Great product. Helped the ride comfort and leveling of the truck. Took the time to research and test the settings and works great. Only complaint would be the harshness of the ride after installed.
Jack
6/23/2023
So far it has worked flawlessly. Ride comfort seems to have softened slightly as its wore in from being new. Would still recommend to those seeking a better ride while towing.
by: Melanie 05/16/2023
Excellent! Excellent! Excellent! Have a truck camper in bed of truck that pushes the payload limit. Love these bc they don’t stiffen suspension but engage when needed. Handles so well!
by: Rodney04/30/2022
This RAS is very easy to install. My truck now sit level with my boat attached would highly recommend this system
by: Tim 08/23/2022
Roadmaster
Gamechanger for us. We have multiple drivers using the vehicle in many different terrains and trailer combinations and the Roadmaster has always impressed us!
by: Ryan 05/02/2021
2019 Ford F-150
Instantly can feel the benefits when went over bumps not even carrying a load and towing a trailer made it feel like I wasn’t even towing one with my f150
by: Mississippi James06/22/2021
2018 Ford F-150
You couldn't ask for an easier installation. If you can take the wheels off, you can install these. Took me about an hour to install both. I went with the HD kit for my 2x4 F150 and set it at 40%. This raised the rear end about 2 inches so it has a very aggressive stance now. I haven't pulled our camper yet but driving around town I have noticed a much stiffer ride. Will give an update after I pull the camper to see if the bounce is reduced or not.
by: John 04/19/2023
2020 Ford F-150
Already installed on my truck took about 45 minutes drives great
by: Michael 10/07/2020
Well I haven’t towed yet but empty it an improvement. Handles a lot better especially cornering. Not as bouncy as it was before install and it surprisingly doesn’t ride stiff at all.
by: James03/26/2022
2018 Ford F-150
Product quality is first rate. Installation was straight forward but not for the faint of heart.
by: Eric 07/02/2021
Eric
7/3/2022
Great I convinced my son in law to install also.We both love it
by: Jeff 09/13/2022
by: Charles 09/02/2022
by: Daniel 08/30/2022
by: David06/02/2022
by: Elsbeth05/30/2021
by: Bassim03/19/2023
by: Paul02/05/2022
by: Aaron06/22/2021
21
21
See what our Experts say about this RAS Vehicle Suspension
- Which RoadActive Suspension Kit for 2020 Ford F-150 Towing TrailerFor as much weight as you plan to tow with your 2020 Ford F-150 you'd definitely want the higher rated RAS system part # RAS94FR that fits your 2020 Ford F-150. You'll need the extra support which will also help allow the ride quality to be better as well.
view full answer... - Recommended RAS Suspension Kit for a 2WD 2018 Ford F-150 I would be happy to help you clear up the confusion. The RoadActive Suspension item # RAS94FR is the correct part number for your 2WD 2018 Ford F-150. The item # RAS3611-YHD you referenced only fits the 4WD models. The RoadActive Suspension item # RAS94FR does have a 3,000 lbs capacity and is a heavy duty option. I have linked a review video below.
view full answer... - Standard or Heavy Duty RoadActive Suspension for 2020 Ford F-150 With 2-Wheel DriveThat's a good question and the right RoadActive Suspension Kit for your 2020 Ford F-150 with two-wheel drive really comes down to just two things: the amount of squat you are experiencing and if you are towing, the amount of tongue weight on the back of your truck. So the correct kit will depend on the following: - Maximum of 2 to 3 Inches of Squat: Standard Duty RoadActive Suspension Custom Leaf Spring Enhancement Kit # RAS3611-B - More Than 2 to 3 Inches of Squat And/Or 600 lbs or More...
view full answer... - Best Rear Suspension Enhancement Kit for 2019 Ford F-150 4x4 Towing CamperThe best rear suspension enhancement we offer for your 2019 Ford F-150 4x4 is the RoadActive suspension kit part # RAS94FR. Unlike other options that have a "downside" the RAS kits provide the additional suspension support without negatively affecting ride quality or require a lot of maintenance like air bag kits. The RAS kits are easy to install, adjustable, provide the needed support, and also improve handling and ride quality loaded AND unloaded.
view full answer... - Are RoadActive Suspension Kits the Same for 2WD and 4WD on 2022 Ford F-150The RoadActive Suspension Custom Leaf Spring Enhancement Kit is different depending on whether you have 2WD or 4WD on your 2022 Ford F-150. If you have 2WD you need one of the following: -RoadActive Suspension Custom Leaf Spring Enhancement Kit # RAS3611-B -RoadActive Suspension Custom Leaf Spring Enhancement Kit # RAS94FR (Heavy Duty) For 4WD: -RoadActive Suspension Custom Leaf Spring Enhancement Kit # RAS3611-Y -RoadActive Suspension Custom Leaf Spring Enhancement Kit # RAS3611-YHD...
view full answer... - Higher Rated RoadActive Suspension Kit that Fits 2020 Ford F-150Since you have the 2,000 lb version RAS part # RAS3611-Y installed on your 2020 Ford F-150 and you need more support your best option would be to replace it with the 3,000 lb kit part # RAS94FR which will give you the support you want without running an additional suspension enhancement kit. The air bag kits install on top of the leaf spring which is where the RAS kit would be which is why it's not compatible.
view full answer... - Recommended Suspension and Sway Control for Springdale Trailer and 2018 Ford F-150The RoadActive Suspension Custom Leaf Spring Enhancement Kit - Heavy Duty # RAS94FR is rated for up to 3,000 lbs and the # RAS3611-B rated for 2,000 lbs are both good options for suspension enhancement to reduce sag. If you want to reduce sway then you'd be better off using a weight distribution system with sway control integrated. I recommend the Strait-Line Weight Distribution System w/ Sway Control - Trunnion Bar - 12,000 lbs GTW, 1,200 lbs TW # RP66084 along with hitch ball # 19286....
view full answer... - Best Suspension Enhancement Recommendation for 2017 Ford F-150The best rear suspension enhancement we offer for your 2017 Ford F-150 is the RoadActive Suspension kit part # RAS94FR by far. This kit gives you easily adjustable suspension support that also enhances ride quality and handling whereas the other options are either not easily adjustable or require maintaining air pressure to be adjustable and also do not improve handling or ride quality. In fact, most of them make the ride quality a bit worse.
view full answer... - Do You Recommend the Standard or Heavy Duty Roadmaster Leaf Springs for My 2022 Ford F-150?When considering a RoadMaster leaf spring enhancement on your 2022 Ford F-150 (2-wheel drive), I recommend going with the heavy duty Roadmaster Active Suspension Custom Leaf Spring Enhancement Kit # RAS94FR over the standard Roadmaster Active Suspension Custom Leaf Spring Enhancement Kit # RAS3611-B. The reason why is because the heavy duty kit provides 1,000 additional pounds of weight capacity (3,000 compared to the 2,000 on the standard version). With this additional weight, you will...
view full answer... - Best Suspension Enhancement for 2018 Ford F-150 For Sag and Stability When TowingThe best option for suspension enhancement for your 2018 Ford F-150 to help with both sag and stability is definitely the RoadActive Suspension kit over air bags, and there are a number of reasons for that. The reason is the RoadActive Suspension is capable of enhancing your F-150's ride in more ways than air bags while being easier to install and maintain. While both will help with squat, and give you more stability when towing, the RAS will also help your truck with any swaying that...
view full answer... - Recommended Suspension Enhancement for a 2022 Ford F-150For your application I recommend going with the RoadActive Suspension. This installs on top of the leaf springs on your 2022 Ford F-150 and requires no maintenance. The tensioning is also adjustable so if at some point you'd like to add or remove some tension that isn't out of the question. If you have a 2WD use part # RAS94FR then for a 4WD use part # RAS3611-YHD. These are the heavy-duty versions which I always recommend going with because it means you have a higher cap than the standard...
view full answer...
- Which RoadActive Suspension Kit for 2022 Ford F-150For your 2022 Ford F-150 the RoadActive Suspenion kit you'd want is the part # RAS94FR which is a confirmed fit and has the higher 3,000 lb weight capacity. The RAS kits are the best suspension enhancement kits out there since they give the additional suspension support like most kits provide but where they differ is they actually improve the ride quality instead of make it worse and they also improve handling loaded and unloaded. The higher capacity kit is the one to go with as it gives...
view full answer... - Suspension Enhancement for 2016 Ford F-150 Not as Harsh As TimbrenTimbrens are unfortunately notoriously harsh and there isn't a way to gain additional clearance like you would need to improve the ride quality so only option would be a different system that is less harsh. A better option would be the RAS kit part # RAS94FR which will give you the support you are looking for as well as isn't harsh at all. Most report it actually improves ride quality handling and stability so it would work really well for you.
view full answer... - Which RoadActive Suspension HD System for 2020 Ford F-150 with 4 Wheel DriveThe RoadActive Suspension # RAS94FR and # RAS3611-YHD are different in that the # RAS94FR will only fit on 2wd models of the 2020 Ford F-150; the correct RAS system for your 2020 Ford F-150 with 4 wheel drive is the # RAS3611-YHD.
view full answer... - Which Roadmaster Active Suspension Kit for 2018 Ford F-150 Towing Travel TrailerFor a trailer that heavy I would recommend the heavier duty RAS kit part # RAS94FR to give you the support you are needing. This will help a lot with porpoising. This also won't necessarily give you a lift beyond stock height unless you really cranked up the support adjustment. The truck would sit higher when towing a trailer but when not towing it shouldn't make a huge difference. This kit would be perfectly compatible with your Billstein shocks as well and there would be no height issues.
view full answer... - Which Heavy Duty RoadActive Suspension Fits a 2020 Ford F-150 2 Wheel DriveThe RoadActive Suspension # RAS3611-YHD is designed for the 4WD models. For your 2020 Ford F-150 2WD you want the # RAS94FR instead. Although that part number doesn't have HD in it, this is still the heavy duty model you are looking for that will work for your 2WD truck. This kit has the same higher 3,000 lb capacity as the one you mentioned. I have attached a review video for your reference.
view full answer... - Suspension Enhancement Recommendation for 2017 Ford F-150 with Lift KitThe best suspension enhancement we have for your 2017 Ford F-150 with a lift kit is the RoadActive Suspension kit part # RAS94FR which provides the adjustable support you are wanting, installs easily, your lift kit does not affect it's install, and unlike other options improves ride quality and stability.
view full answer... - Does RoadActive Suspension Custom Leaf Spring Enhancement Kit Lift Unloaded SuspensionA little bit of suspension lift after installing a RoadActive Suspension kit part # RAS94FR is normal but it really depends on the tension setting of the spring. If it's cranked down hard and giving the suspension a lot of additional support that will translate into more of a lift on the suspension. I'd start by lowering some of the tension out of the RAS to lower the lift unless you are okay with it and were just wondering if what you have is normal or not.
view full answer... - Recommended Suspension Enhancement For 2022 Ford F-150 With Curt 5th Wheel Base RailsGreat photos, thank you, and while we do have a suspension enhancement option for your 2022 Ford F-150, you are correct the Ride-Rite # F2582 won't work because they use the same mounting holes as the Curt Custom Fifth Wheel Installation Kit # C93WR. I then took a look at the Air Lift # AL47PD, but the issue there is they use U-bolts that go over the frame to mount, and the Curt brackets have the pronounced hump right where they would go. So instead, of air bags, I highly recommend the...
view full answer...
- Best Rear Suspension Enhancement For 2017 Ford F-150 to Help Sag When TowingThe TorkLift StableLoad Suspension Upgrade # TLA7310S that fits your 2017 Ford F-150 is more of an upgrade for ride quality, and wouldn't do a great deal to help with sag. There is an option that will help tremendously with sag, however, which is a kit from RoadActive Suspension; the correct option will depend on if you have 2WD or 4WD, and how much squat you are experiencing. 4-Wheel Drive - Max of 2 to 3 Inches of Squat: RoadActive Suspension Custom Leaf Spring Enhancement Kit # RAS3611-Y -...
view full answer... - Which RoadActive Suspension Kit Setting for 2018 Ford F-150Everyone I know who has installed a RAS system on their truck like the # RAS94FR went with the highest setting and found that it gave them the best ride quality, support, and handling. I would try that first since we know it works so well for people. From there I would see if you wanted less support but I doubt you would. If you install it and use it then you would not be able to return it but based on the overwhelming positive feedback we've had on these kits I know you'll be happy.
view full answer... - Best Suspension Enhancement for 2018 Ford F-150 to Reduce Sag and BounceThe absolute best suspension enhancement kit for your 2018 Ford F-150 is the RoadActive Suspension kit par t# RAS94FR. This kit provides the best ride quality loaded and unloaded, is easily adjustable and installed, and also improves handling and stability. It will get rid of the bounce and sag you are experiencing.
view full answer... - Which RoadActive Suspension Kit for 2020 Ford F-150The correct RoadActive Suspension (RAS) application will depend on whether you have a 4x2 or 4x4 truck and the amount of additional support you're needing. If you have a 4x2 truck, use # RAS3611-B for 2000 lbs of support or # RAS94FR for 3000 lbs. If you have a 4x4 truck, use RAS3611-Y for 2000 lb or # RAS3611-YHD for the 3000 lb kit. These will fit 2020 F-150 models with the exception of the Raptor. I've linked a video that explains how the RAS system works.
view full answer... - Recommended RoadActive Suspension Kit For A Ford F-150 Towing A Trailer There are a few different RoadActive Suspension enhancement kits available for a 2022 Ford F-150 with the weight capacity and drive being the differentiating factors. If you have a 2WD model and are loaded up to 600lbs or experience up to 2" of sag then you'll need the # RAS3611-B. If you are loaded up over 600lbs and experience over 2" of sag then you'll need the # RAS94FR. If you have a 4WD model and are loaded up to 600lbs or experience up to 2" of sag then you'll need the # RAS3611-Y....
view full answer...
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Info for this part was:
Installed by:
Jeff D
Installed by:
Adam E
Expert Research:
Jameson C
Video Edited:
Chris R
Updated by:
Wilson B
Updated by:
Noah M
Edited by:
Daron K
Written by:
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Michael
12/25/2021
Its been a year since I installed my Roadmasters. Would I do it again? Absolutely! They have made my travel trailer pulling such a better experience. In addition, my daily commute has been a pleasure as well.