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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

Roadmaster Rear Anti-Sway Bar

Item # RM25FR
Retail:$828.89
Our Price: $763.64
You Save: $65.25
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 RM25FR or order online at etrailer.com. Free expert support on all Roadmaster products. Great prices and Fastest Shipping for Roadmaster Rear Anti-Sway Bar. Anti-Sway Bars reviews from real customers.
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  • Reviews (8)
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  • Why etrailer?

Roadmaster Anti-Sway Bars - RM25FR

  • 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
  • Works with front anti-sway bar (sold separately) for absolute stability - available on certain applications only
  • 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.



1109-101 Road Master Anti-Sway Bar - Rear

Installation Details RM25FR Installation instructions

This Product Fits The Following Vehicles




Customer Satisfaction Score:


Customer Reviews

Roadmaster Rear Anti-Sway Bar - RM25FR

Average Customer Rating:  4.6 out of 5 stars   (8 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:
2021 Chevrolet Silverado 3500

Super rugged bar, relatively simple installation, but the instructions could stand to be a little better. A few more pictures would go a long way towards making it easier to understand.


Comments
Great! Hualing a truck camper around for the last 8 months or so and the sway bar makes that a much nicer operation.
AJR - 11/20/2022


by:
2021 Chevrolet Silverado 2500

Was easy to install and worjz awsome made a big difference in the truck should make a big difference with towing 5 th wheel. But will have wait until spring for that




by:
2021 GMC Sierra 3500

Very excited and happy to have purchased this sway bar for my 2021 GMC Sierra 3500HD. The quality is superb with it's thick heavy bars. Came with everything needed to install this behemoth!
There was one hiccup while installing, at no fault to etrailer. The holes to fit the screws into my truck next to my shock absorbers had nuts welded on the top of the holes?! The screws were to big to fit through because of these nuts. Only way to get around it was using a reamer bit to make the hole even all the way through. From there it was easy. The instructions even indicated that there could be some manufacturing alterations from the original specs that may effect install. Highly recommend!!




by:

I have always loved etrailer but this last order was not up to their standards. Directions were not the best for my 2021 GMC 2500HD and wrong parts. The 6 bolts for mounting the main brackets were 3.5" and 4.5" is what is needed and no nuts for them. The directions left out that you had to drop the gas tank to attach the drivers side bracket also and link arm bolts are not the same size. It has cost me $xx in nuts & Bolts so far.


Comments
I am sorry that you are having such trouble with this product. It sounds like something is not correct in the order. Customer Service will be reaching out to you.
-- Etrailer Expert Sierra K - 09/15/2021


by:
GMC

I put this unit on a 2020 GMC Denali. It fit perfect. Only took an hour to install. I carry a 12 foot overhead Lance camper and this bar took almost all of the top sway out when coming out of a parking lot or when big rigs pass.




by:




by:



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See what our Experts say about this Roadmaster Anti-Sway Bars

  • Installation Assistance Needed Roadmaster Rear Anti-Sway Bar
    I contacted Tech Support at Roadmaster to verify fitment, they confirmed that the Roadmaster Rear Anti-Sway Bar, # RM25FR, 1109-101, is the correct item for your 2021 GMC Sierra 2500HD. They also confirmed that proper installation does use a 3-1/2" bolt, specifically an M12x1.75-90mm. Unfortunately we do not have an installation video created for this product.
    view full answer...
  • 2021 GMC Sierra 2500 Rear Sway Bar Recommendation
    The Roadmaster Rear Anti-Sway Bar Item # RM25FR is a confirmed fit for all 2021 GMC Sierra 2500 models.
    view full answer...
  • Roadmaster Anti-Sway Bar For 2021 GMC Sierra 2500
    The brackets for your camper mounts will not be in the way at all when installing the Roadmaster Rear Anti-Sway Bar Item # RM25FR in your 2021 GMC Sierra 2500.
    view full answer...
  • Installing A Roadmaster Anti-Sway Bar On A 2021 GMC Sierra 2500
    The Roadmaster Rear Anti-Sway Bar Item # RM25FR is not a custom fit for your 2021 GMC Sierra 2500 and will require you to drill holes into the frame during install. The bolt you should be using to attach the brackets to the frame are the M12 x 1.75 x 90 mm BOLT CLASS 10.9 YELLOW ZINC, which are #12 on the parts list in the instruction manual and the are the six larger bolts that you see in the picture of the # RM25FR.
    view full answer...
  • Is Drilling Needed to Install Roadmaster Rear Anti-Sway Bar on 2021 Chevy Silverado 2500
    I took a look at the instructions (which I also linked for you below), and while there is no drilling into your truck's frame needed, depending on one factor, there may be some drilling required to install the Roadmaster anti-sway bar on your 2021 Chevy Silverado 2500, which is the following part: - Roadmaster Rear Anti-Sway Bar # RM25FR On page three of the instructions, it says: "On each side, remove the lower shock bolt and nut and loosen the upper nut to swing the shock out of the...
    view full answer...
  • Do Leaf Spring Bump Pads Get Removed Installing Roadmaster Rear Anti-Sway Bar RM25FR
    That's a good question, so I reached out to Roadmaster concerning the bump stop removal for the Roadmaster Rear Anti-Sway Bar # RM25FR. What their tech team said was that the bump stops will indeed get removed, and are not going to get re-installed.
    view full answer...
  • Rear Anti Sway Bar That Fits A 2022 Chevrolet Silverado 3500
    Yes, we do have exactly what you're looking for, for your 2022 Chevrolet Silverado 3500. The Roadmaster Rear Anti-Sway Bar # RM25FR is confirmed to fit your vehicle, and also includes heavy-gauge mounting hardware, easy-to-follow instructions and some bushing lubricant. This kit does a great job of diminishing the effects of cross-wind, driver's fatigue, and improves overall stability. I have included a review video on this kit for you to check out.
    view full answer...
  • What Drilling is Needed to Install Rear Anti-Sway Bar on 2022 Chevy Silverado 2500HD
    Yes, the Roadmaster Rear Anti-Sway Bar # RM25FR will fit a 2022 Chevy Silverado 2500HD and is compatible with air bags. When it comes to drilling it looks like you only need to do that if your shock mounts are equipped with weld nuts. If they are you need to drill them out using a 7/16" drill bit (see attached photo to see where this location is at). I've also attached a review video for you to check out.
    view full answer...
    Image 1 for
  • Recommended Rear Sway Bar for a 2023 Chevy Silverado 3500
    Yes, the Roadmaster Rear Anti-Sway Bar item # RM25FR is confirmed to fit your 2023 Chevy Silverado 3500. This will minimize lateral movement in your rear end and improve stability. You will really notice this installed when you are going over uneven roads or making turns. This sway bar is made in the USA and includes everything needed to install on your Silverado. I have linked a couple of pictures below to show you what this sway bar will look like once installed.
    view full answer...
    Image 1 for Image 2 for
  • Rear Sway Bar For 2021 Chevrolet Silverado 3500HD With Dual Rear Wheels
    The Roadmaster Rear Anti-Sway Bar # RM25FR is confirmed to fit your 2021 Chevrolet Silverado 3500. The kit is designed to work with all models of your Silverado with or without the dual rear wheels. This will also work with air bags like the Firestone Ride-Rite Red Label Extreme Duty Air Helper Springs # F2709.
    view full answer...
  • Roadmaster Anti Rear Sway Bar # RM25FR Installation On A 2023 Chevrolet Silverado 3500
    When it comes to installing The Roadmaster Rear Anti-Sway Bar # RM25FR and The Air Lift LoadLifter Helper Springs # AL57541 on your 2023 Chevrolet Silverado 3500, It actually can be installed almost at the same time. First I would start by installing the air bags when you get the left air bag installed before you bolt everything back up you can slide the sway bar up underneath it and then reattach the bolts. Do the following on the right side. I attached an installation video link below.
    view full answer...
  • Does Roadmaster Sway Bar that Fits 2021 GMC Sierra 3500 Also Fit with Air Bag Kit
    Yes the Roadmaster Sway Bar part # RM25FR is a confirmed fit for your 2021 GMC Sierra 3500 and is perfectly compatible with air bag kits. The Firestone air bag kits are the best built so when it's time to pick that out I would recommend the part # F2613.
    view full answer...
  • Difference Between RoadActive Suspension Kits for 2020 GMC Sierra 2500
    For your 2020 GMC Sierra 2500 the difference between the HD versions of the RoadActive Suspension kits is that the part # RAS3611-CHD fits vehicles with overload springs whereas the # RAS3611-HD fits versions without the overload springs. These kits would work great with a rear sway bar like the # RM25FR as well. The two kits together would offer really great sway reduction and handling improvements.
    view full answer...
  • Difference Between RoadActive Suspension Kits For A 2022 Chevrolet Silverado 2500
    When installing The RoadActive Suspension Kit on your 2022 Chevrolet Silverado 2500 the difference between the HD and the CHD is that the # RAS3611-CHD fits vehicles with overload springs whereas the # RAS3611-HD fits versions without the overload springs. For even better sway reduction and handling improvements, you can use the Roadmaster Rear Anti-Sway Bar # RM25FR with either kit mentioned above. If you have any further questions please feel free to reach back out to me anytime and...
    view full answer...

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Info for this part was:

Employee Lindsey S
Edited by:
Lindsey S
Employee Jeff D
Installed by:
Jeff D
Employee Jameson C
Expert Research:
Jameson C
Employee Mike S
Written by:
Mike S
Employee Noah M
Updated by:
Noah M

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