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When you hit crosswinds or get passed by a semi, the last thing you want is to fight the wheel to hold your line. The Roadmaster Front Anti-Sway Bar ties the front axle to the chassis with a thick 1-3/8" diameter bar made from 4140 chromoly steel. That stiffness keeps the body from leaning and shifting side to side, so you stay steady through corners and lane changes. The extra roll resistance means sharper handling and a more confident drive on the open road.
Hours behind the wheel can wear you down when the vehicle sways every time the wind kicks up. This setup minimizes side-to-side movement and balances weight transfer, keeping the ride level even on uneven pavement. It takes less steering correction to stay in your lane, so you end the day more relaxed with both hands still light on the wheel.
This isn’t made from ordinary mild steel. The 4140 chromoly bar is stronger and more rigid, improving torsional roll stiffness by nearly 30 percent over standard setups. Polyurethane bushings replace traditional rubber ones, resisting oil, gas, and ozone so they don’t soften or squish out. Less flex at the mounts means consistent performance and long-term durability.
You don’t need to cut or drill anything to mount this bar. It attaches directly to the front axle and frame using the included heavy-gauge hardware and bushing lubricant. The fixed end link design keeps things straightforward, and it’s engineered to avoid interference with most popular aftermarket add-ons. Installation is simple, and once it’s on, you’ll feel the difference right away.
Customer Satisfaction Score:
97% were satisfied with this product
3% of customers were not satisfied
Ratings & Reviews
These sway bar really works It Solved my Problems
I wish I had ordered this kit initially. (I had previously received the wrong kit and need to return it to you). This new kit arrived quickly and looks exactly like what you instructional videos show. Should be a breeze to install!
Thanks for the quick response/turn around getting me the correct unit for my vehicle!
Helped alot. Fairbanks roads are pretty bad . Lots of heaves and dips. Life in the arctic! Install was pretty good. Had a buddy help and we got it dun pretty quick. Was pleased to see the heavy bar material. Made the stock sway bar look tiny.
Both links broke . Roadmaster warranted
Great customer service thanks!
Parts were exactly as described and fit perfectly.
Huge improvement in the handling of our E450 Motorhome!
The front Sumo springs and Sway bar fit perfectly.
Thank you for the supper super fast shipping.
The sway bar is an excellent upgrade and has improved the handling a lot. I've only had a short test ride at this time but I do see a great improvement. I should have done this 12 years ago.
The installation was straightforward and all necessary parts and pieces were included and good quality. Not an inexpensive upgrade but you get what you pay for.
Works great very happy with the results.very well made.easy to install directions very clear.price was better then most sites.Roadmasters make a great product. Many thanks
Purchased this front anti-sway bar for 2004 E450 Fleetwood RV. Installation went well but ran into a small hickup because I was following video instructions for 2006 instead of 2004. Called etrailer on a Saturday and had a call back within 30 minutes from etrailer and a gentleman there got me back on track quickly for a perfect installation! 5 stars for product and customer service! Very impressed!!
Awesome! Our E-350 camper van drove like a boat. The anti-sway bars made all the difference in the world. No more white knuckle grip on the steering wheel. Now I'm cruising down the freeway with a cup of coffee in one hand. Thanks etrailer!
Really firmed up the suspension. Steering is definitely improved and 18 wheelers no longer blow me off the road when they pass. The combination of the thicker anti-sway bars and the steering stabilizer provided a 1000% improvement in the travel experience for our motorhome.
Added this to a 1997 Ford E350 Born Free RV and while we have not been traveling much it does appear that the vehicle is more stable and rolls less and recovers faster. Worth the money spent.
Exact part I was looking for AND Etrailer price matched the price I found on a competitive website...$245 back into my credit card!
David
8/22/2021
Great. Still notice the positive difference in the way my RV handles on turns, especially entry and exit ramps. Definitely worth it.
E350 Pleasure-Way Excel TS. Replaced original with this upgraded Bar along with adding a Roadmaster rear anti-sway bar and Roadmaster Reflex Steering Stabilizer. Van was all over the road prior to these upgrades. Sway and tramlining is greatly reduced with the upgrades. Before it was more like herding it down the road verses now driving it with confidence and safety.
1000 Times better than OEM!!!!
great product I felt the difference as soon as I got it on the road. I used the supplied low or short bushings and saddles with no interference problems. I'm not sure why they send the taller bushings in which you use the old saddles with, to me the closer it is mounted to the frame would be the strongest combination. so I called Roadmaster and they could not give me any answer as to which would be better. all in all a fairly simple install for someone with decent mechanical skills I didn't need to even jack up the front.
Bruce W.
8/18/2020
This way-bar has made a big difference especially when encountering cross winds and big rigs. the kit installed just as the directions said. I was only sorry that i did this after our Alaska trip of 8,728 miles. it would have made that trip more comfortable for the driving part. as on the top of the world highway was pretty rough and one of the original ford sway bar bushings walked its way out of place leaving a metal to metal banging sound until we got to camp that night. I hammered it back in and put a hose clamp around the bar to prevent it from waling back out again. that worked the rest of the trip.
Applying to a 2006 Ford E450, class C, Itasca Spirit. I haven’t completed the job yet, but here are my observations for the install. First, everything is metric. You’ll need a 30mm socket and wrench for the big nut on the base of the coil spring. It took probably close to 300 foot pounds of torque to remove this nut. There are no specifications provided for the tightening torque of this nut, so I applied 80. Also, the special bolt that the 30mm threads onto has a 22mm head located inside of the coil spring. I needed to access this to lower the special nut after raising it. If you raise the special nut too much, it will separate from the threads it’s engaged with, and I needed to push down on its head with a screw driver while turning it, to re-engage. I wasn’t sure how far down to rethread it, and it doesn’t seem to stop. So I eyeballed the position of the special bolt before reengaging the 30mm nut. This will all make more sense once you do your own install. The two videos were very useful.
Robert
12/12/2021
After a year of use, I couldn’t be happier. I replaced both front and rear anti sway bars, as well as my steering stabilizer, in the hopes of improving my handling on the highway, and in particular, to prevent getting blown around by passing trucks. I replaced each component about a month apart, but it wasn’t until I replaced the final component, the front anti sway bar, that I really noticed the improvement. I’d like to think it was a synergistic result of all three replacement parts. Regardless, my class C is much easier to drive on the long trips to Florida and back, with no more white knuckle moments.
We upgraded our front sway bar on our 2005 Jayco Granite Ridge on the Ford E450 chassis a year ago prior to starting a 17,000 mile trip around the country. It was a game changer for, improving handling and stability significantly (along with proper tire inflation). The installation video is very misleading regarding the ease of installation, showing only the attachment on the right side. The left side is much more difficult requiring wedging the stabilizer tab between the suspension and stabilizer plate. Just be ready for that, it is more involved than the right side.
James
9/9/2024
One year later and its still working great for us. Class C motorhomnes will always be bulky on the highway but this sway bar definitely made a big difference.
Looks like it will work well. Frame brackets had rust and seemed cheaply made. Otherwise good.
Dave
6/21/2025
A year on and this was a great upgrade. Really improved drive-ability. Highly recommended!
Kate F.
6/23/2025
I can definitely feel a difference in the RV since I put the new parts on.
Very high quality product. The bar is much more substantial than the original bar. I debated buying the Roadmaster bar for a long time because it is expensive but I never liked the way the original bar was designed to run through grommets in holes in each axle half. The Roadmaster bar provided an immediate ride improvement. 1 mile down the road on my test drive, I was already convinced I made a worthwhile purchase. I found a greater sway improvement by replacing the rear sway bar than the front but I do notice a definite improvement with the front. If I had to do it over again I would repeat my process which was rear bar first then front bar if I felt more was needed.
Dit this job my self , no lift , on the floor on my back and got it installed. Front and rear anti sway bars and 4 new bilstein shocks and yes u need the 8 swivel head socket/wrench tool from harbor freight to do driver side. The rest of the instalation whent well, the onley consern is the front bracket sadle and bushing sits nearly on the bend of the sway bar ( see photo )
good quality product ,unit is well engineered. purchased unit to provide better front end control on my 2003 winnebago class c . we will see how it works out. i am sure it will be an improvement on old stock ford suspension. also order was easy, quick and fast. thank you E-Trailer!
Replaced stock 2006 Ford e350 class B front anti-sway bar with this one and the improvement is amazing! More stability and less white knuckle driving!
Easy installs on my 2004 E-450. The new Roadmaster 1139-115 front sway bar and the Roadmaster 1139-147 rear sway bar greatly improved the handling and cornering of the motorhome. I have aDraw-Tite 65001 front mount receiver mounted and there were no problems when installing the front sway bar.
Andrew
6/18/2021
It is actually a pleasure to drive! When cornering the motorhome would lean and things would slide around and i even had kitchen drawers open. The problems that i had no longer exist. The cost and the work i did to install were well worth it!
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David
5/12/2022
Same basic comments, worth the money and seems to be more stable with less sway