Stability Control for Heavy Duty Vehicles

Anti-Sway and Steering Solutions

Large vehicles tend to be harder to handle for a variety of reasons. The center of gravity in trucks and RVs is often considerably higher, resulting in decreased stability. Distribution of weight may be unequal - think of a pickup loaded down with cargo in the rear, or a motor home with cabinets and appliances weighing down one side. This can create an unstable ride even during straight-line movement, let alone during cornering. Merely having greater size and mass makes a vehicle less aerodynamic and more susceptible to crosswinds as well. So what can be done to counter these issues?


Roadmaster and Blue Ox both have developed lines of suspension enhancement products that are designed to combat these all-too-common problems. Each item is customized to fit your vehicle and work with its stock suspension. Not only do these products complement your current system, they are also guaranteed not to interfere with it or with most popular aftermarket add-ons. Therefore, these enhancement products will not affect your vehicle warranty.





Do you need suspension enhancement?

Take a look at the following questions. If you answer yes to any of them, then you should consider a suspension enhancement product.





Benefits of Suspension Enhancement

All of these suspension enhancement products are engineered from high-quality materials to ensure long-lasting, superior functioning components. But they also work to keep your vehicle operating at its best for the long haul. No matter which product you choose, you will notice:





Which suspension product is right for me?

Now that you know that your vehicle would benefit from suspension enhancement, it's time to determine which product is best suited for your particular needs. Please note, these products can be used together for maximum benefit on many vehicles.


Anti-Sway Bar

If your primary concern is reducing the side-to-side movement of your vehicle to gain greater control over it, or if you experience excessive body roll when cornering, then Roadmaster's Anti-Sway Bar is your best bet. Benefits of this stabilizing product include:

Roadmaster Anti-Sway Bar


Roadmaster Anti-Sway Bushings

Many large vehicles have anti-sway bars from the factory, but Roadmaster has created a more effective system. Each anti-sway bar is made of cadmium-plated 4140 chromoly steel that is stronger and thicker than the standard 1020 steel bars that tend to come from the factory. On average, these bars are approximately 30 percent better at reducing sway than the competition. Polyurethane bushings and grommets are used at the attachment points to create pivot points that are neither so rigid nor so malleable as to become ineffective. These durable bushings outlast traditional rubber ones and permit less flex between the anti-roll bar and the vehicle frame, creating a stronger, more reliable system.



Axle Stabilizers

Roadmaster Davis TruTrac

A track rod is your best choice for improving the basic handling characteristics of your vehicle. If you find that your steering often feels loose and uncontrolled, and your vehicle seems to wander into other lanes or veer when you hit potholes and ruts, then this product is for you. Track rods help correct excessive axle side play, which will reduce:


The design of these stabilizers is quite simple. Attach the durable steel rod to your vehicle's axle at one end and then to its chassis at the other to create a sturdy link between the two vehicle components. This connection serves to essentially hold your vehicle's axle in place, steadying it in normal driving situations and, more importantly, on uneven terrain.


There are 2 different types of track rods available:




Steering Stabilizers

If you find yourself constantly oversteering and working to keep your vehicle in line and you're certain that if you were to blow out a front tire you would completely lose control of your vehicle, then you need a steering stabilizer. This is not exactly a suspension enhancement product, but it helps correct some of the same problems that the anti-sway and track bars are designed to correct. In addition to simply keeping your steering firm, a stabilizer will:


Roadmaster Steering Stabilizer

Roadmaster's Steering Stabilizer attaches to your vehicle's steering tie rod on one end, and to its frame on the other, creating a tight connection between the two components that keeps steering firm and controlled. The tempered steel spring on the outside of the stabilizer constantly works to maintain its natural state, pulling back into shape when it's stretched and pushing out again when compressed. This action causes your vehicle to return to center no matter how you steer or how the frame is pushed or pulled.



Blue Ox TruCenter

Blue Ox's TruCenter functions in much the same way, but with one additional, unique feature. This stabilizer has an in-cab, push-button control that lets you manually adjust the tension for a perfect ride. Simply press the button, steer into the most comfortable, controlled, centered position, and release. The TruCenter applies just the right amount of pressure for your vehicle to maintain that desired positioning, keeping it in line for the duration.


Updated by: Raymond P.

Last updated: 7/5/18





Questions and Comments about this Article

Tom B.

I have a 2011 FW Serrano 31x on a 2010 W22 Workhorse Chassis, front engine diesel. I have been told this is not a "normal" model and due to the engine weight, I am having difficulty finding a suitable sway bar suspension system. Any ideas/sugesstions? Thank you 102430

Reply from Jon G.

It sounds like you're needing the Blue Ox TigerTrak Front-Axle Stabilizer # TT2304 . This is designed to fit your 2010 Workhorse W22 chassis and helps to control that sway movement you mentioned. 75395

Mike R.

Have 2015 thor outlaw 38.5 ft. Have constant sway,fighting wheel even when no wind and no traffic. Where to start? Unit has 27,000 miles. 102309

Reply from Jon G.

The first things to upgrade are your front and rear anti-sway bars as well as your steering stabilizer. After that then the next thing is to add suspension enhancement (rear and then front as needed). I'm linking the fitguide to your motorhome below, you just need to choose the correct GVWR to see what fits. 75336

Reply from Mike R.

My motorhome currently has a track rod on front axle would a sway bar be better? 75437

Reply from Jon G.

@MikeR Your track rod helps to stabilize your motorhome when there is movement of the body over the axle like what you would experience when a big truck passes you on the highway. An anti-sway bar helps to prevent sway and body roll. From my understanding you can generally install both on a motorhome so that's what I'd do in your case. 75455

Reply from Mike R.

Thank you. Also have discovered that my kingpins have too much play. So I will address that issue first. 75462

Bernie G.

I have a Thor 2020 32T Hurricane with a 1.5 inch front sway bar. Will a 1.75 inch road master sway bar make a significant difference? Why does .25 inches matter? Please keep all comments on topic. 101602

Reply from Jon G.

Yes, the Roadmaster Front Anti-Sway bar # RM-1139-140 will make a difference even though it's only 0.25" larger in diameter. Basically you get a thicker piece on your vehicle which makes it more robust and effective. Here is a link to the steering enhancement options for your 2020 Thor Hurricane. 74996

Mike K.

I have a 2020 Tiffin Open Road model 32SA. I recently drove across country and noticed difficulty with passing trucks and wind causing swaying. Also a feeling of fatigue after driving all day. I have a tire pressure monitor and noticed situation was worse with cooler temps due to lower tire pressure. I definitely want to add sway bars but I would like to get your thoughts on adding nitrogen to tires to replace air for more consistent tire pressure. I would also like to add Sumo Springs after seeing how much of an improvement sway bars enhance control ability. Thanks 99260

Reply from Jon G.

The first things to add are the front # RM-1139-140 and rear # RM-1139-149 sway bars, as well as the steering stabilizer # RM-RBK22-RSSA . Please note that the factory U-Bolt may not be long enough for the rear bar and you might also need the square # RM-590050-00 or round # RM-590050-10 U-Bolt kit. For SumoSprings you need kit # SSF-170-40-2 for the front and kit # SSR-180-54-1 for the rear. 73813

Reply from Jon G.

The first things to add are the front # RM-1139-140 and rear # RM-1139-149 sway bars, as well as the steering stabilizer # RM-RBK22-RSSA . Please note that the factory U-Bolt may not be long enough for the rear bar and you might also need the square # RM-590050-00 or round # RM-590050-10 U-Bolt kit. For SumoSprings you need kit # SSF-170-40-2 for the front and kit # SSR-180-54-1 for the rear. 73814

Reply from Jon G.

The first things to add are the front # RM-1139-140 and rear # RM-1139-149 sway bars, as well as the steering stabilizer # RM-RBK22-RSSA . Please note that the factory U-Bolt may not be long enough for the rear bar and you might also need the square # RM-590050-00 or round # RM-590050-10 U-Bolt kit. For SumoSprings you need kit # SSF-170-40-2 for the front and kit # SSR-180-54-1 for the rear. 73815

Reply from Jon G.

The first things to add are the front # RM-1139-140 and rear # RM-1139-149 sway bars, as well as the steering stabilizer # RM-RBK22-RSSA . Please note that the factory U-Bolt may not be long enough for the rear bar and you might also need the square # RM-590050-00 or round # RM-590050-10 U-Bolt kit. For SumoSprings you need kit # SSF-170-40-2 for the front and kit # SSR-180-54-1 for the rear. 73816

Chris S.

I have a Four Winds Thor motorhome on a E-350 cutaway van chassis. I am looking to improve the handling both front and rear. Heavier duty front and rear sway bars and a steering stabilizer I believe would be my best options but any help on the best options would be appreciated. Also I notice the drivers side in the rear tends to be lower than the passengers side. I am also looking to install a NAV. system especially made for motorhomes that takes into account their size when giving routes to travel. I also want it to have a built in back up camera or at least the availability to connect one to it. Please send me your recommendations as we use this as our form of long distance travel, thanks and look forward to hearing from you. 97763

Reply from Jon G.

@ChrisS Front and rear anti-sway bars as well as a steering stabilizer are definitely the first steps to improving your ride quality as they will make the most difference. The next step is adding suspension enhancement and for that I recommend the SumoSprings which are extremely popular among RVers that we help out. To figure out what fits your RV you can use our fitguide to filter through the choices. If you can let me know the year of your motorhome I can make some specific recommendations. Making sure that your motorhome is loaded evenly (left to right as well as front to back) will help out as well. For navigation you want the Jensen Touch Screen RV Stereo # JRV9000R which does exactly what you're wanting. It also has 3 camera inputs so you can add the rear # VCMS17B , driver # VCMS50LGP and passenger # VCMS50RGP side cameras. 72973

Andre P.

I have a 2006 Fleetwood Flair 34u. I am looking to reduce the sway caused by big trucks/wind. Suggestions? thanks 86027

Reply from Chris R.

For your Fleetwood Flair that's built on the E-450 chassis, I highly recommend adding the Rear Sway Bar # RM-1139-147 . This will drastically reduce the side to side movement you're experiencing on the road. 68047

Greg

I have a 2017 Fleetwood Jamboree 31u. I am looking to reduce the away caused by big trucks/wind. Suggestions? thanks 80702

Reply from Chris R.

A rear and front sway bar will do wonders for the sway you're experiencing on the highway. For your Fleetwood Jamboree, which is built on the Ford E-450 chassis, I recommend the Roadmaster # RM-1139-147 for the Rear and # RM-1139-176 for the Front. 66457

George B.

What fits my W22 chassis 2004 Gulf Stream Sun Voyager 8386 model with the 8.1 workhorse chassis? Suspension products is what I'm looking for to stabilize the coach when driving anywhere. 78591

Reply from Chris R.

For your Workhorse W22 chassis I highly recommend starting with a rear sway bar for which Roadmaster # RM-1259-109 will work perfectly. This will make significant improvements to the stability of the RV as you travel down the highway. Adding the Steering Stabilizer # RM-RBK13-RSSA will also make a huge difference. 63785

James S.

I have a 2020 jayko 31 ft greyhawk built on a 2019 e450 chassis. Hard to keep driving straight when passed by trucks on highway. What can help 77715

Reply from Chris R.

A rear sway bar will drastically improve the side to side movement you're experiencing with passing trucks - the Roadmaster # RM-1139-147 will work great for the Jayco Greyhawk built on the E-450 chassis. Another add-on that will really help is a steering stabilizer so you don't have to work as hard to keep the RV in a straight line. For this I recommend the Roadmaster Reflex # RM-RBK24-RSSC . 63266

Bill M.

I have a 2016 Thor Axis on a E350 chassis What do you have to replace the factory drag link assembly. 76087

Reply from Chris R.

We wouldn't have a direct replacement for the drag link on your E-450 chassis (you may need to go through Ford directly for this) but we do have steering stabilizers that will help a lot with issues you might be having. For your 2016 Thor Axis the Roadmaster # RM-RBK24-RSSC will work perfectly. 62165

Barbara

We have a 2018 Thor Four Winds 31W on a Ford E450 Chassis. We want to add sway bars, front and back and a steering stabilizer. What do you recommend? 74223

Reply from Chris R.

For your Four Winds on the E-450 chassis you will need the Roadmaster # RM-1139-147 for the Rear Sway Bar and part # RM-1139-176 for the Front. The Roadmaster Steering Stabilizer # RM-RBK24-RSSC will work perfectly. 60390

Luis L.

good afternoon ... I have a motorhome 32 winnerbago suntar 2019 and when I am driving it 50 miles it does not stay stable that you recommend and thank you very much 72705

Reply from Chris R.

This is a fairly common issue but it's easily fixed with a couple stabilizer components. Your Winnebago is built on the F-53 chassis, so adding the Rear Sway Bar # RM-1139-146 and Front Sway Bar # RM-1139-140 should be enough to drastically improve your ride. If after adding these you still feel some room for improvement, the next step would be the Steering Stabilizer # RM-RBK22-RSSA . 59650



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