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  1. Anti-Sway Bars
  2. Roadmaster
  3. Anti-Sway Bar
  4. Rear
  5. 1-1/2 Inch Diameter
  6. Steel w Polyurethane Bushing
Roadmaster Rear Anti-Sway Bar - 1-1/2" Diameter
Roadmaster

Roadmaster Rear Anti-Sway Bar - 1-1/2" Diameter

Part Number: RM46GR
In Stock
$1,235.18
Anti-Sway Bars

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Minimize sway and driver fatigue by improving the stability and driveability of your vehicle. The bar on this sturdy, effective anti-sway system mounts to the rear axle and to the frame to balance weight transfer and reduce body roll. 1-800-940-8924 to order Roadmaster anti-sway bars part number RM46GR or order online at etrailer.com. Free expert support on all Roadmaster products. Great prices and Fastest Shipping for Roadmaster Rear Anti-Sway Bar - 1-1/2" Diameter. Anti-Sway Bars reviews from real customers.
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  • Reviews (1980)
  • Q & A (0)
  • Videos (1)

Roadmaster Anti-Sway Bars - RM46GR

  • Anti-Sway Bar
  • Roadmaster
  • Rear
  • 1-1/2 Inch Diameter
  • Steel w Polyurethane Bushing

Minimize sway and driver fatigue by improving the stability and driveability of your vehicle. The bar on this sturdy, effective anti-sway system mounts to the rear axle and to the frame to balance weight transfer and reduce body roll.


Features:

  • Minimizes side-to-side movement to improve overall stability of your vehicle
    • Lets you execute turns and quick maneuvers with confidence
    • Allows for a level ride, even on irregular surfaces
    • Reduces driver fatigue - minimizes effort required to keep your vehicle in line
  • Diminishes effects of crosswinds, passing motorists and shifting cargo
  • Designed to fit your vehicle and work in conjunction with its suspension system
    • Attaches to rear axle and to chassis - uses weight of axle to brace frame as it shifts in turns
    • Engineered to avoid interference with most popular aftermarket add-ons and accessories
  • Made with polyurethane bushings instead of the standard rubber variety for a longer-lasting system
    • Polyurethane is durable and resistant to damage caused by oil, gasoline and ozone
    • Less wear means less give in the system and better support
  • Constructed of thick 4140 chromoly steel for superior strength
  • Includes heavy-gauge mounting hardware, easy-to-follow instructions and bushing lubricant
  • Made in the USA


Specs:

  • Bar diameter: 1-1/2"
  • Limited Lifetime Warranty


Roadmaster Anti-Sway Bar Installed

Benefits of an Anti-Sway System

The Roadmaster anti-sway bar does for side-to-side movement what a good pair of shocks does for up-and-down motion. You will notice a marked improvement in your vehicle's stability as the bar works to balance weight transfer and reduce body roll. The anti-sway bar acts as a link between your vehicle's frame and its rear axle, using the axle as a brace to more effectively balance the shifting weight of your vehicle as you maneuver it. Lubricated bushings allow just enough pivot and rotation to compensate for the pressure placed on one side of your vehicle when it goes into sudden maneuvers, hits crosswinds or encounters shifting weights.


Roadmaster Anti-Sway Polyurethane Bushings

Superior Construction

The Roadmaster anti-sway bar is made of 4140 chromoly, a chromium and molybdenum steel alloy. This type of steel is considerably harder and stronger than the standard 1020 steel that is typically used in anti-sway applications. In addition, the larger diameter of the bar increases its torsional roll stiffness. The result is a bar that is not only stronger than the competition, but also nearly 30 percent better at resisting sway. The polyurethane bushings and grommets used at the attachment points are durable yet flexible, ensuring that the system is neither so rigid nor so malleable that it becomes ineffective.



1129-129 Road Master Anti-Sway Bar - Rear

Installation Details RM46GR Installation instructions

This Product Fits The Following Vehicles




Video of Roadmaster Rear Anti-Sway Bar - 1-1/2" Diameter

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.




Video Transcript for Manufacturer Breakdown - Roadmaster Anti- Sway Options

Hello neighbors, it's Brad here from Etrailer and today, I'm with Jeff from Roadmaster. And today, we're taking a look at what you can do to your coach to enhance the suspension. So a lot of coaches out there, real top heavy feeling and people think, "Well, it is what it is. It's a big bus, you know, how do I improve this" But that's not necessarily the case. Roadmaster has a few different options to help make a better ride, overall. Definitely, it definitely does.

So typically, we educate our customer to let 'em know that yes, you can improve your ride or you can get that GT version suspension with your motor home. And how we do is we basically have to find out what's the root of the problem, okay. So typically, when a customer comes up to us, the very first thing they say is, "Hey, I'm constantly doing this when I'm going down the road." That that just means so many different things. So we actually ask a few more questions. "Hey, do you tow a vehicle behind your motor home Does it get worse when you put that motor home behind, or that vehicle behind the motor home And when it does, is this getting worse as well" And when the answer is yes, yes and yes, then we kind of know that the issue is tail wag at that point.

And that's usually fixed by a product called a track bar. And what it does, it just locks the rear axle in place. So it's not moving side-to-side. It's only moving straight up and down like it should, okay Or the next thing that I typically ask my customers is, is "Whenever you go in and out of turns, does it feel like the coach wants to roll over to its side" Most of the time, the answer is yes. And typically, the reason why is because when that coach or when the chassis was manufactured, they really had no Earthly idea what the final output was gonna be, how tall it was, how much weight was gonna be on it.

So you actually took center of gravity from probably a foot and a half, to a foot off the ground and all of a sudden, you're six feet off the ground or eight feet off the ground. We're putting air conditioners, solar panels, satellite dishes, everything else on top of these things. And we just need to drastically improve that. So how we do that in this case, is we upgrade the sway bars. In some cases, we're doing a remove and replace.

In other cases, we're actually piggybacking, adding a second sway bar to the rear or to the front of the coach. So sway bars are something predominantly, you see on passenger vehicles. And when I started working here, putting a sway bar on an RV, I go, "Well, I mean it's the same concept, why not" But seeing the difference, I've done sway bars on my own personal vehicle and the first turn you take, you go, "Oh, that's a lot better." Definitely. It's no different on an RV, in fact, it might even be. Jeff Much more noticeable. Yeah, absolutely, 'cause. Or before driving, it does feel like it's gonna topple over and you don't necessarily get sports car handling, but it's more response on the steering, it's more direct and you just feel a little bit more planted, more, honestly, confidence when driving. Yeah, and a lot of our customers are reporting back up, you know, they're saying up to a 60% increase in how they feel that their coaches is handling. And that's what we really like to hear and that's where we're trying to aim for. We wanna give that customer their vacation the minute they start out of the driveway and not once they get to their destination. Yeah, and so as far as sway bars, there's rear sway bars as well as front sway bars, correct Correct. So why would someone choose one or the other or should they go with both Typically, we suggest both. In some cases, yes, you can start off with the rear, but like I said, again, we like to suggest both because we're actually tuning the bars for the weight of that vehicle that it's gonna carry. So to have an upgraded bar in the rear and not one on the front, kind of does it a little bit of injustice. That's fair. Now something else too, as a long drive that's gonna wear you out is, is fighting the steering wheel back and forth and you guys have a way to fix that, correct Absolutely, we sure do. So once we turn and look at all the issues that the customer has, we determine what the issues are, we start talking to the customer and we resolve 'em by doing track bars, sway bars, the last and final thing that we usually recommend is a steering control. So basically, what the steering control does and essentially, is put center force pressure on a tie rod. So that way we're trying to hold that vehicle in a straight line. So if the customer has road ruts, if they turn around and hit potholes in the road, high winds, it's an assistance for that customer to keep in a straight line on their coach. Yeah, and that's, again, one of the installs, many of the installs that I've done is the steering stabilizer. And again, that's one of those, "Does it really make that big of a difference" Well, just going through our parking lot and cutting it, you let go of the steering wheel and it kind of still just tracks that way, whereas the steering stabilizer, you can see the steering wheel go back to center and then, when you're just going down a straight line, it just feels like it's in a nice natural groove. Jeff Yeah, sure does. So it's definitely a lot more comfortable, especially, you know, putting a lot of hours on the road or doing any twisty-turvy, you know, curvy roads out there, it's just gonna help balance it and kind of counter steer a little bit for you, bringing it back to center. That way, you're not having to fight that wheel back and forth. Now with both of, you know, our front sway bar, rear sway bar as well as the steering stabilizer, that's gonna get you a really good ride. And I think overall, better drivability, these also still work in conjunction with other suspension enhancements that you can add on as well, so you can really deck out the suspension of your RV. And I think it's. You'll be a believer once you start doing these, you're just gonna enjoy driving it more, I believe. Exactly, it brings the vacation back and the fun back into RV-ing. Yep, absolutely. Well, this was a look at some of the Roadmaster suspension components to just get your coach going down the road a little bit safer and a little bit more comfortable. Thank you Jeff from Roadmaster, for taking the time to break that down for us. All right, thank you.


Customer Reviews

Roadmaster Rear Anti-Sway Bar - 1-1/2" Diameter - RM46GR

Average Customer Rating:  4.8 out of 5 stars   (1980 Customer Reviews)

Minimize sway and driver fatigue by improving the stability and driveability of your vehicle. The bar on this sturdy, effective anti-sway system mounts to the rear axle and to the frame to balance weight transfer and reduce body roll.

by:

I have a 2017 Ford F350 Super Duty SRW, and we haul a heavy truck camper (Lance 1055.) I have Stable Load Uppers and HD airbags, but wanted to add a sway bar to add that extra layer of control, even though my truck has handled the camper well over the last 2 years and 10,000 miles. My truck did not come with an OEM sway bar installed, so I needed this kit that included the End Links too.

The Roadmaster Rear Sway Bar and End Links sold on etrailer are top quality products. They are robust and well made, with quality hardware to match. The product deserves a 5-star, and even unloaded, my truck handling improved right after installation, with improved cornering and no real impact on ride quality in my opinion. I have not yet loaded up our camper or towed our boat, but I have no doubt this sway bar will substantially reduce sway and will improve control and handling when the camper is loaded.

So why 4 stars and not 5?

1. I researched this product and the installation in detail. I planned on installing it myself and expected to find plenty of detail on etrailer's site, or Roadmaster's site, or the internet. My most pressing question was about where to mount the end links, and the orientation of the sway bar arms since I wouldn't be using the OEM end links. That information was no where to be found on the etrailer site, Roadmaster's site, or in any installation manuals. For a product and supplier that has likely sold lots of these to Ford Super Duty owners, I was surprised to find how little info was out there. The installation video on the etrailer site was helpful, but did not include any information for the end links, as they had a 2015 Super Duty and used the OEM end links already installed. I contacted etrailer and they told me to contact Roadmaster for more info on where to locate the end links with this kit.

2. I contacted Roadmaster. They told me they had no instructions and that despite my truck already having the cut-outs for the OEM bracket that attaches the OEM end links to the frame, that none of those holes may work for me. So they suggested I connect the sway bar brackets to the axle first and then see where the arms would line up with the end links. The tech also suggested that it wasn't critical that the end links were perpendicular
to the frame, but that I should try install the end links to allow the arm of the sway bar to hand as close to parallel as possible. No bueno. When I installed this the 14" end links (center hole to center hole) didn't allow for the arms to hang parallel to the frame. And I don't think it matters as the orientation of my sway bar and the arms looks about like every video or picture I could find on the internet of this year/model truck and this sway bar kit. It seems to function fine.

3. Installing it was a bear, especially the way they instructed me to. And I had to make some modifications to fit my truck, as the sway bar arms were rubbing up against my airbag mounting brackets. I got it installed, but the thin instructions turned what should have been a 60 minute job into 2 1/2 hours. A bit frustrating.

All in all, this will do the job intended and will provide me with peace of mind next time we load our camper. I am a bit frustrated that there were zero installation instructions specific to my year/make/model of truck given it did not have an OEM sway bar and the end links had to be installed with a bit of guesswork. You will also note in my pictures that I had to mount the end links to the sway bar arms differently on each side to make the bar fit around my air bag mounts.



by:

This product arrived on time, and is as described in company literature. I have installed the sway bars and the sumo springs on my 2019 Ford E3 26 foot Thor motorhome. Installation is fairly straightforward. Having said that, I am a retired farmer and I am quite familiar with this type of work. Having the proper tools makes the job go much quicker and easier. Installation of the front sway bar took a little under an hour. The rear sway bar is a bit more complicated to install, but he can be easily accomplished by someone of average mechanical skills, equipped with the proper tools. I strongly recommend removing the rear wheels to facilitate installation of the springs and the sway bar. I have not driven my motorhome yet, but will be taking an extended trip in March. I am looking forward to an improved ride.



by:

Fairly easy install. Drilling the hole in the frame was decent started with a 17/64 pilot hole then the 17/32 final hole. Take your time and let the drill do the work.
Do be aware of the hole placement on the drivers side as there are brake lines and wiring there.



by:

All the contents were delivered in the package. The kit fit perfectly as designed. Ordered for a Ford F-350 Super Duty. Truck handles great!



by:

Very straight forward remove and replace operation/installation. One person can do this laying on their back in a driveway. I'm very pleased with the drivability since the installation. The number one reason is - reduced driver fatigue!! And that's with 2 exclamation points!! Prior to this, I replaced the original shocks with a set from Koni, and upgraded Sumo Springs. To include, a steering stabilizer from Safe-T-Plus. One would think it would steer itself; at this point. All-in-all, I'm happy with this suspension upgrade.



by:

Received the product in a timely manner. The shipping company used I’d give a no star rating. I received the anti-sway bar bare out of a box or wrapper with the installation part box and a cut out piece of cardboard with the shipping label on it taped to the bare bar with about five yards of packing tape. The bar was scuffed, scratched and chipped with the RoadMaster label destroyed. I realize it’s going to be installed under the front of my motorhome but as much as it costed I would like to be the one to scratch and scuff it. If I was a company installing this on a customers vehicle I’d return it. I do not believe it was shipped from etrailer in this condition.



by:

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.



by:

With about 600 miles pulling the RV, we are mildly impressed with how well our three-quarter ton tracks down the highway while pulling the RV. Well worth the upgrade.
However, etrailer needs a video on adding the hangers. There are no instructions that come with the kit that cover the hangers. The hangers have different size bolts, the shorter ones fit inside the frame.



by:

Was told from etrailer that this was going to be a quick plug and play but no this was to be installed on a class c ( no drilling) but no , ustraps had to be adjusted did not fit and struts would not reach had to drill chasis



by:

Replaced the sway bar on my 1996 Fleetwood Flair. Easy bolt on installation. Have issues with the front-end swaying and bouncing around in cross wind and when approaching a slower moving truck. The new sway bar helped some but not as well as it was claimed.



by:

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 )



by:

Great buying experience with ETrailer. Fast shipping and quality constructed part. Noticeable difference in controlling body sway. Very pleased with the bar and highly recommend Etrailer.



by:

This is night and day! We have a 2019 Newmar Bay Star Sport 2813, and we already had the supplemental rear bar, Safe-t-Steer and Koni Shocks. Nothing made the difference that this did! With the new sway bar our coach doesn't sway going down the road, and is at least 75% better on corners. Going out a driveway doesn't have the crazy see-sawing it had before!

My wife now likes riding in our motorhome, versus screaming about every corner before.

I'm sure all of you running the Ford F-53 chassis will have the same level of improvement!



by:

Solid-built sway bar. Helps stabilize in wind while driving. Using on 2016 Thor Vegas 25.3 RV, notorious for suspension and driving issues. Using front anti-sway bar as well with Safe-T-Plus steering stabilizer.



by:

OH My! If you are thinking about getting one for your P32 wide body. Please don’t hesitate. It REALLY Works. Take the white knuckle effect out of driving. EASY installation! Easy Ordering from etrailer. Roger helped me get through the buying process and shipped to my house in 2 days! Thank You!!



by:

This rear sway bar is very heavily built. Not easy to install by yourself, but doable. Honestly, I don’t feel allot of difference, however, I have already added inline air valves that reduce sway and the chassis has “V-Ride”, so I don’t know how much of a difference I would have felt without those items. As far as tractor trailer passing me, there’s a marginal improvement. Still, that being said, I’m happy with the purchase.



by:

First, Eric was a great help throughout the purchasing and installation. I watched the tutorial numerous times and set up my tools. I bought a 3/4 inch torque wrench at Harbor Freight and a 4 ft galvanized pipe at Home Depot. I followed the instructions and the tutorial to the letter. The bar and mounting plates are heavy, so be very careful. This job isn't for a beginner, but if you are somewhat mechanically inclined, you can install it. The 300 Ft. Lbs torque of the 8 nuts took everything out of me. LOL...I adjusted the end links twice, and it leveled out great. Now, I will do a test run and see how it improves the handling of my motorhome. Its a 2022 Entegra Vision 29S.



by:

I am happy to finally have the rear anti-sway bar installed. Noticed the difference right away. I will order the front anti-sway bar soon. I have the skills to install the anti-sway bar, but did not have the heavy tools to do the job. Paided a local shop 2hrs labour, well worth it.



by:

I watched your video on the installation of the rear sway bar which I found to be helpful. I used an adjustable strap to level the sway bar before aligning and drilling for the links. Looking forward to a road test soon. Thank You



by:

Very heavy duty sway bar. Using it on a 2016 Thor Vegas 25.3 RV. Much thicker than original and still holding up fine. Helps to stabilize in high winds and passing trucks. Also added the Safe-T-Plus stabilizer to keep wheels from wandering.



by:

This sway bar is the real deal. Easy to follow instructions but I had it installed because I'm lazy. It took one hour labor



by:

The bar fit nicely. The brake proportioning valve bracket had to be modified and the hole elongated. The performance with the camper on is night and day difference on my 1998 2500 Ram.



by:

Worth every penny in handling and stability performance gained on Entegra Odyssey 24B (was not standard on 2021 model) Performance was gained along with Roadmaster Front Anti-sway bar and, not rear alone. Also added Roadmaster steering stabilizer at same time.



by:

Your installation video was helpful. The front bolts on the the hangers required heating to break them loose. The factory was generous with blue lock tite. I might add the front bolts require a 18mm socket. Looking forward for a road test. Thank You always



by:

Purchased for 2021 F350 that I haul a large in bed camper. I also haul water as I live out of the city. All the parts for this kit are heavy duty, and not hard to install with hand tools. I have not had the camper back on the truck yet but have hauled water. The sway bar does an awesome job keeping the truck flat and no sway. I am very happy with the quality and excellent job this sway bar does. Highly recommend.


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Info for this part was:

Employee Lindsey S
Edited by:
Lindsey S
Employee John S
Video Edited:
John S
Employee Sabrina W
Written by:
Sabrina W

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