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If your rig leans hard into corners or drifts in crosswinds, this rear anti-sway bar keeps things tight and predictable. The 1-1/2" diameter bar ties the rear axle to the chassis to balance out weight transfer and cut down on body roll. You’ll feel the difference when you take a curve or pass a semi—the ride stays steady and the steering feels more planted.

Fighting constant sway can wear you out. This bar helps keep your line straight on windy highways or uneven pavement by minimizing side-to-side movement. With a more balanced rear setup, you’re not making constant corrections, so long drives feel easier and less tiring.
Strength and consistency matter here. The bar is made from thick 4140 chromoly steel, which is tougher than standard 1020 steel and nearly 30% better at resisting sway. It uses polyurethane bushings that hold up to oil, gasoline, and ozone, so they don’t squish out or wear down like rubber. That means steadier support and longer service life.

No drilling or frame mods needed. The kit mounts to the rear axle and chassis using the included heavy-gauge hardware and bushing lubricant. It’s designed to clear most common suspension add-ons, so it fits right into your setup without extra hassle.
Customer Satisfaction Score:
91% were satisfied with this product
9% of customers were not satisfied
Ratings & Reviews

Fred
8/15/2026
Excellent it works great


Gwendolyn Y.
4/8/2025
No more white knuckling! That's awesome to hear, Kris. I'm glad that this bar helped so much so you can have a more relaxed drive :)

Kris
3/17/2026
I have taken a few trips with the Clatter Cabin now. It’s been enjoyable to drive. Since then I have replaced the exhaust from the engine back with 2 12 inch pipe. I was able to get the pre bent exhaust parts over the axle and clear your rear sway bar nicely. Now she purrrrs!

Kate F.
9/24/2025
Install looks great Steven! I can't wait for you to take it out for a spin so you can see the difference for yourself, it is amazing what a upgraded sway bar does to your ride, no more white knuckles for you, or your wife. What big stops do you have planned on your trip to the West Coast?

Ken
8/19/2025
No complaints with the handling. This is a good sway bar!

Jenny N.
6/25/2024
What I recommend is touching it up with a rust resistant paint like Rustoleum. We will be in contact with you about the damage. Please keep an eye on your email.

Leonard
6/22/2025
After a year and many miles I would give it a five star for sure. Made a great improvement over the stock anti-sway bar. With the rear and front RoadMaster anti-sway along with the RoadMaster steering stabilizer the E-450 33 foot class C motorhome drives like a dream. I highly recommend these three products. If not all at once then this order, 1st rear anti sway bar then 2nd front and then the steering stabilizer with the spring on it.
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Matthew
10/7/2026
This is a complete game changer when using a truck camper Mine is an Arctic Fox 990. I would list this under a must have accessory when using a truck camper. Unloaded ride when you hit off camber bumps is slightly rougher, but hey its a Ram 3500 dually for hauling heavy stuff. Also the performance when carving twisty canyons with an empty truck is astonishing....Watch out Corvetts, here I come!