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  1. Vehicle Suspension
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  3. F-250 Super Duty
  4. 2019
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FITS 2019 Ford F-250 Super Duty
RoadActive Suspension Custom Leaf Spring Enhancement Kit - Heavy Duty

RoadActive Suspension Custom Leaf Spring Enhancement Kit - Heavy Duty

Item # RAS3611-SLHD
Our Price: $589.00
Vehicle Suspension
Confirmed to Fit
2019 Ford F-250 Super Duty

2 Wheel Drive

4 Wheel Drive

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Shipping Weight: 37 lbs
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RAS vehicle suspension for your 2019 Ford F-250 Super Duty are available from etrailer.com. Installation instructions and reviews for your Ford vehicle suspension. Expert service, and great vehicle suspension prices. etrailer.com carries a complete line of RAS products. Order your RoadActive Suspension Custom Leaf Spring Enhancement Kit - Heavy Duty part number RAS3611-SLHD online at etrailer.com or call 1-800-940-8924 for expert service.
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2019 Ford F-250 Super Duty - RoadActive Suspension Custom Leaf Spring Enhancement Kit - Heavy Duty

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

3,000-lb Capacity. Convert your Ford F-250 Super Duty'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.


Diagram of RAS Installed

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


How RAS Works

Close-Up of RAS Tension Spring

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


Eliminates Axle Wrap and Wheel Hop

RAS Eliminates Axle Wrap

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


Reduces Sway and Body Roll

RAS eliminates sway and body roll

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


Levels Your Ride and Improves Traction

RAS Levels Your Ride

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


Customizable Coil Tension Springs

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

3611SL-HD

Installation Details RAS3611-SLHD Installation instructions

Customer Satisfaction Score:


Customer Reviews

RoadActive Suspension Custom Leaf Spring Enhancement Kit - Heavy Duty - RAS3611-SLHD

Average Customer Rating:  4.7 out of 5 stars   (726 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:

Really like this product. Was super easy to install and instructions were easy to read. Amy was very helpful in recommending the correct part and even took the order for me. Its winter here in the Rockies so I haven't had a chance to test out the load of my 5th wheel, but the ride still feels smooth. I have ordered from etrailer before and always have a good experience. Choose them with peace of mind.



by:
2021 FordF-250 Super Duty

So far I like the product it comes with good instructions and easy to install . Also the ride of the truck is better than the airbags I had a lot smoother and not so bouncy .



by:
2017 Nissan Leaf

This is the 2nd pair I purchased. My first was for a 2017 Ford F150 and the
first thig I did when I purchased my 2021 F250 Super Duty was to get a pair for that truck. I don't know that I will ever have a truck without a Leaf Spring Enhancement Kit.



by:

I use it with my Timbrens and it give the truck a great ride when not towing. It also seems to help the Timbrens with a relaxed reflex response to dips and bumps when towing. I'm very happy with it.



by:
2020 FordF-250 Super Duty

Well I just installed them today so I went ahead and loaded my excavator just to see how much the rear of my truck squatted and it didn’t squat near as much as before, I’m pulling 16000 lbs trailer and excavator with a 2020 F250 super duty and before I installed I normally would have to park my excavator in just the right spot to give me enough tongue weight that I needed but I always had that seat of the pants feeling that I didn’t like while towing it, drove down the road with everything installed and loaded and it honestly felt like a completely different truck, didnt pull it but about 4 miles but so far so good, think I’ve finally found my solution



by:

I really like these. I have a pair on both my trucks. They don't take away all the bouncing, but they take a whole lot of the bouncing away.



by:

Pretty bouncy, not as good as other opt ions.



by:
Ford F-150

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.



by:

Installing was not difficult, not as much sag when connected to 1080lb tongue weight trailer



by:
2016 FordF-250 Super Duty

Great improvement. Much more stable and level towing my 8000 pound travel trailer with my 2016 F250.



by:
2014 FordF-250 Super Duty

Made a huge difference in the way my truck sits with a 12,000 lb. RV on it



by:

Outstanding quality fast delivery.



by:
2021 Jayco Jay Flight SLX Travel Trailer

Install took about 30min. Seems my rear is a hair higher at 25%. Going to tow 7k about 650mi this weekend. See how much if helps.



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by:
2019FordF-250 Super Duty

Easy install and really reduced squat!



by:
2017 FordF-250 Super Duty



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2019 Ford F-350 Super Duty



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2016 FordF-250 Super Duty



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by:

I received this kit in a very timely manner always do from etrailer have some issues with the instructions that come from roadmaster not a trailer the bump stop spacer didn’t say that you need to use the original bolt from the bump stop so it slowed me down greatly on the install however I took it out on a quick run without a load I do feel that this has made the unloaded ride smoother tomorrow I’ll be taking the trailer out for a bit and we’ll see how it works there and I’ll update this rating.



by:

Admitedly, I haven't even rolled my '07 Silverado 2500HD classic out of the garage yet, but I'm already very pleased. I had to go to a neighbor for a 10mm hex key socket and was slowed down by my 7yo kid 'helping', but it was still only 90 minutes my jack stands were in use. Easiest thing to do!
My only small downsides so far:
* needed to find a 10mm hex key that I apparently don't own, not sure why they picked that fastener
* wish I put some loc-tite on; just to make me feel better
* distance to drop the axle so the suspension fully hangs was way further than I expected; barely had my jack stands tall enough to get the job done.

These aren't really bad on the product, just notes for future customers. We're towing the 5er about an hour an a half this coming week, hopefully it steadies up a lot!



by:

Overall, very happy with the product. GMC didn't have any way to improve the truck from squatting when I hooked up my trailer. This kit didn't stop the squatting but significantly reduced the bounce on bad dips in roads, bridge/road transitions and bad railroad crossings.


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Show More Reviews

See what our Experts say about this RAS Vehicle Suspension

  • Best Suspension Enhancement 2017 Ford F-250
    The best suspension enhancement by far for your 2017 Ford F-250 towing a heavy fifth wheel trailer is the RoadActive Suspension kits. They give the best stability, support, and unlike other solutions actually improves ride quality. The Timbrens are notoriously harsh so I would not recommend that route for you. So if you have factory overload springs you'd want the part # RAS3611-SLHD or the # RAS3611-SHD if you do not.
    view full answer...
  • Best Suspension Upgrade for 2022 Ford F-250 to Prevent Sagging and Sway
    The best suspension upgrade you can make for your 2022 Ford F-250 that is towing a trailer will be with the Roadactive suspension kit part # RAS3611-SLHD as this will do a great job getting rid of the sag and does the best job at preventing sway and improving handling. Unlike other similar options this will improve ride quality when loaded and unloaded as well.
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  • Will RoadActive Suspension Help With Sag on 2015 Ford F-250 Super Duty Towing 5th Wheel
    Air bags can be tedious so going with a kit you don't have to maintain on your 2015 Ford F-250 Super Duty is smart, and the best option to both help with the sag and sway you are experiencing is the RoadActive Suspension system. The correct fit for your truck is the following part number: - RoadActive Suspension Custom Leaf Spring Enhancement Kit - Heavy Duty # RAS3611-SLHD The heavy duty # RAS3611-SLHD is what you'll want for towing a 5th wheel due to the amount of pin weight in the...
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  • Suspension Enhancement for 2019 Ford F-350 Super Duty that Improves Ride Quality
    If you thought the air bag kit made the ride quality too stiff and harsh then a Timbren kit would not be for you as it would make it much harsher. The best suspension enhancement kit we have for your truck for your needs is the RAS kit part # RAS3611-SLHD which gives you the support you want and based on our experiences improves the ride quality.
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  • What Is Best Suspension Enhancement for 2019 Ford F-250 with Truck Bed Camper
    If you were to use a Timbren kit for rear suspension enhancement for your 2019 Ford F-250 you'd want the lighter duty # TFR250SDJ as the 350 version would be very harsh and not comfortable. But if you want the best option I would highly recommend the RoadActive Suspension kit part # RAS3611-SLHD as this gives you adjustable suspension support that will actually improve your handling and ride quality unlike other options like the Timbrens that make the ride quality noticeable harsher.
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  • Recommended Suspension Enhancement for a 2019 Ford F-250 Towing a 5th Wheel
    Between the RoadActive Suspension Custom Leaf Spring Enhancement Kit # RAS3611-SLHD and Timbren Suspension Enhancement System # TFRTT350J, I prefer the Timbren. Though both of these are set it and forget it products, the # TFRTT350J does provide more support when needed. The draw back to both of these systems is that they are not adjustable and will affect the ride pretty severely when not towing. With that being said, I prefer the Firestone Ride-Rite Air Helper Springs # F95FV. This is...
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  • Suspension Enhancement Recommendation for 2015 Ford F-250 Towing Travel Trailer
    I have a really great solution for but the SumoSprings aren't designed to make contact with axle all the time so that they would be engaged even when unloaded and also there aren't spacers available to allow that to happen so this wouldn't be your best route. Instead I would go with the RoadActive Suspension part # RAS3611-SLHD for if you have factory overload springs or part # RAS3611-SHD for if you do not have them. This is an adjustable system that would allow you to add more support...
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  • Will RoadActive Suspension Kit Help With Wheel Hop on 2016 Ford F-350
    The RoadActive Suspension Custom Leaf Spring Enhancement Kit # RAS3611-S is actually a great solution to eliminate the wheel hop you are experiencing. This system eliminates axle wrap, wheel hop, and bottoming out. The force that is causing the wheel hop will be absorbed by the RAS kit. In addition to solving your wheel hop problems, the RAS will also keep you level when towing or hauling while helping to reduce sway and body roll. It also helps to extend the life of your leaf springs,...
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  • Best Suspension Enhancement for 2021 Ford F-350 with Truck Bed Camper
    For your 2021 Ford F-350 you'd really only need one suspension enhancement kit installed on your truck. If you were to need the support of two you'd be most likely overloading the truck so your best option is to go with one setup that's as ideal as possible. Now the best option for suspension enhancement for your truck is the RoadActive Suspension kit part # RAS3611-SLHD for if you have factory overload springs or part # RAS3611-SHD for if you do not have the overload springs. The RAS...
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  • Suspension Enhancement Recommendation for 2022 Ford F-350 Towing Trailer
    Between Timbrens like the part # TFRTT350J and the SumoSprings # SSR-127-54 that fit your 2022 Ford F-350 crew cab long bed I would recommend going with the SumoSprings as you get the support you are wanting without causing the ride quality to be overly harsh. Timbrens do give great support but they are notorious for being pretty harsh. For my best recommendation for your truck I would recommend the RoadActive Suspension kit part # RAS3611-SHD if your vehicle does not have factory overload...
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  • Will Air Bags for 2016 Ford F-250 Work with B&W Custom 5th Wheel Installation Kit
    I do have an option for you but air bags like the Firestone Ride-Rite Red Label Extreme Duty Air Helper Springs part # F2703 won't work with the B&W Custom Installation Kit part # BWRVK2401 on a 2016 Ford F-250. The holes for the air bags line up with holes in the bracket on the driver side but not the passenger side. Therefore, you'll have to go with anther option like the RoadActive Suspension Custom Leaf Spring Enhancement Kit part # RAS3611-SLHD.
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  • Spring Rate of RoadActive Suspension Custom Leaf Spring Enhancement Kit
    According to RoadActive Suspension the spring rate for the standard kit # RAS3611-S is 2,400 lbs. For the heavy duty # RAS3611-SHD it is 3,600 lbs. The heavy duty # RAS3611-SLHD is the same but only designed to fit if you have factory top overload springs on your 2016 F-250. I did ask if that was the actual pounds per inch measurement since it seems rather high and they weren't entirely sure. I know this measurement correlates with the weight capacity of each so it is probably best to...
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  • Will Air Bags Work On a Lifted 2017 Ford F-350
    The correct Firestone Ride-Rite Red Label Extreme Duty Air Helper Springs for a 2017 Ford F-350 is part # F42ZR. That said, these won't work well with most lift kits due to the design of the brackets nor will any air bags on this vehicle. If you have a lift kit installed you'll need to look into different options for support. I recommend the RoadActive Suspension Custom Leaf Spring Enhancement Kit part # RAS3611-SLHD for models with factory overload springs or part # RAS3611-SHD for models...
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  • Are There Air Bags for a Lifted 2014 Ford F-350
    I do have an option for you but air bags don't work well on most lifted 2014 Ford F-350's due to the design of the rear jounce strike plate. I am not saying there isn't a kit that will work but due to their being soo many different lift kits out there, we'd need to know which exact one you have to confirm or deny. The main thing you are looking for is the location of the jounce strike plate. It needs to be in the factory location so the lift spacer cannot installed between this and the...
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  • Will RoadActive Suspension Enhancement fit 2020 Ford F-250 FX4 Lariat With Firestone Air Bags
    The answer to both of your questions is yes. As long as you do not have factory top overload springs the RAS # RAS3611-SLHD can be used with your Firestone air bags. These will add additional support to your 2020 Ford F-250 and compliment the air bags. The two combined will definitely reduce the sag you're still experiencing. These will also help to increase the life of your leaf springs and other suspension components as an added bonus. The RAS system disengages when unloaded, so even...
    view full answer...
  • Does RAS Leaf Spring Enhancement RAS3611-SHD Fit A 2021 Ford F-250 4WD?
    The RoadActive Suspension Leaf Spring Enhancement Kit # RAS3611-SHD you mentioned will fit your new 2021 Ford F-250 Super Duty 4WD as long as it does NOT have the top overload springs. If it does have the top over load springs you would need the # RAS3611-SLHD instead. I included videos of the products mentioned for you to take a look at.
    view full answer...
  • RoadActive Suspension Enhancement for 2002 Ford F-350 with Factory Overload Springs
    I spoke with my contact over at RoadActive Suspension and there is a kit for your 2002 Ford F-350 with factory overload springs. It is # RAS3611-SLHD. But you will have to remove the factory overload springs to install it. The system though will more than make up for any capacity lost and you will also get all of the other benefits of the system including stability and better ride quality. This item also comes with spacer plates to take up the gap from the factory overload springs.
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  • Suspension Enhancement Recommendation for 2020 Ford F-350 FX4
    The Firestone Ride Rite kit part # F95FV that you referenced would not fit your 2020 Ford F-350 FX4 model since your dimension from the jounce to the top of the axle is 50 mm. Instead what I would recommend is the RoadActive Suspension kit part # RAS3611-SLHD for if you have factory top overload springs or part # RAS3611-SHD for if you do not have any. The RAS systems provide the best support, ride quality, and handling when compared to all other options out there so they are the best...
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  • Suspension Enhancement for 2022 Ford F-350 with Lift Kit
    Hey Victor, so normally installing an air bag kit like the Firestone part # F2600 that fits your 2022 Ford F-350 on a truck with a lift requires spacers...but since you can't access the area where the bump stop is on your frame you would need to go with a Roadactive kit like the part # RAS3611-SLHD which works with the lift kit as well as it doesn't need access to the bump stop area either. I really like the RAS kits as they provide all of the support you need, don't require maintenance...
    view full answer...
  • Difference Between RoadActive Suspension HD Kits For 2011 Ford F-250
    Good question; I reached out to RoadActive regarding the difference between the two kits for your 2011 Ford F-250, and there is indeed a difference. The part intended for trucks with an overload spring includes spacers needed for the installation after removal of the overload spring. So here is what you'll need, depending on if you have the overload spring or not: - WITHOUT Overload Spring: RoadActive Suspension Custom Leaf Spring Enhancement Kit - Heavy Duty # RAS3611-SHD - WITH Overload...
    view full answer...
  • Best Suspension Enhancement for 2021 Ford F-350
    For your 2021 Ford F-350 the best suspension enhancement I can recommend is the # RAS3611-SLHD which I know isn't what you asked about but this solution gives you the best support but goes beyond the other options as it improves your ride quality instead of hurting like other options, and also improves handling and stability. Other options will give you the support but you sacrifice the loaded and especially unloaded ride quality but the RAS actually improves it all around which is what...
    view full answer...
  • Best Suspension Enhancement for 2020 Ford F-350 Towing Fifth Wheel Trailer
    The RAS systems are by far the best suspension enhancement option for a truck like your 2020 Ford F-350 towing a fifth wheel trailer. You get (adjustable) suspension support which greatly reduces sag, you get improved stability and reduced sway, but unlike other options that make the ride quality rougher these actually are known to improve the ride quality. So if your truck has factory overload springs you'd want the part # RAS3611-SLHD and if you don't have them # RAS3611-SHD.
    view full answer...
  • What RoadActive Suspension Kit Do I Need For My 2022 Ford F-250 Cab And Chassis
    Yes The RoadActive Suspension kit # RAS3611-SHD will be a good fit for your 2022 Ford F-250 cab and chassis. Provided it does not have factory top overload springs. If it does have factory top overload springs you will want to go with # RAS3611-SLHD instead. These can be identified by looking at the top of your leaf springs and will basically look like another leaf that is not connected to the rest. I have attached a picture that should explain what they look like a bit better.
    view full answer...
    Image 1 for
  • Best Suspension Enhancement for 2021 Ford F-350 Towing Fifth Wheel
    For your 2021 Ford F-350 that has some sag when towing a fifth wheel the best option for additional support that won't hurt your loaded or unloaded ride quality is the RoadActive Suspension kit part # RAS3611-SLHD for if you have factory overload springs or part # RAS3611-SHD for if you do not have them. This kit gives you the best of all worlds as you get adjustable support, an easy install, and improved ride quality and handling. Most kits you basically get to pick one of those things...
    view full answer...


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