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Big loads can make your setup feel loose on the road. This adjustable anti-sway bar evens things out by tying the rear axle to the frame with a solid 1-5/16" chromoly steel bar. Three stiffness settings let you dial in how firm you want it, giving you tighter control and a more confident feel when hauling or towing. The added stability cuts out the side-to-side sway that comes with shifting cargo or heavy tongue weights, so everything stays level and predictable.
Getting pushed around by wind or passing trucks wears you out fast. This rear bar keeps your rig steady by minimizing body roll and sway, so you’re not constantly correcting the wheel. It keeps the rear end planted through gusts, uneven pavement, or quick maneuvers, making highway runs smoother and less stressful. With the suspension balanced out, steering response feels sharper and the ride stays controlled even in tough conditions.
This setup isn’t just strong—it’s built for long-term reliability. The bar itself is thick 4140 chromoly steel finished in a corrosion-resistant silver vein hammer tone powder coat, with black powder-coated brackets and end links. Polyurethane bushings resist oil, gasoline, and ozone so they won’t break down or squish out like rubber. Less wear means less flex in the system and more consistent performance over time.
No drilling or fabrication needed here. The kit comes with zinc-plated mounting hardware, detailed instructions, and bushing lubricant for an easy bolt-on install using basic tools. Whether you’re replacing a factory bar or adding one for extra support, it’s designed to go on cleanly and fit right without getting in the way of other gear. Once installed, you can feel the difference from the first turn of the wheel.
Customer Satisfaction Score:
97% were satisfied with this product
3% of customers were not satisfied
Ratings & Reviews

Kate F.
4/23/2026
Wow, 205,000 miles and handling better than new. That is the kind of glow-up we love to hear about Greg! It sounds like you really dialed in your setup piece by piece, and it paid off in a big way. Pairing the Timbren and RAS with upgraded sway bars is a serious combination, especially for hauling trailers like yours. That added stability and confidence in crosswinds makes a big difference on long trips. We also appreciate you calling out the fitment note on the Hellwig kit. That is very helpful for others getting set up. Glad our team could help get you squared away there. So where are you off to for the next adventure?

Brooke M.
3/17/2025
Glad to hear that, Chris - thats awesome you tackled this yourself! Have you done a lot of installs?



Mike L.
6/23/2026
Thanks Michael, I'm happy we could help out!

Gwendolyn Y.
4/23/2025
Thanks for sharing these great pics, Peter! It's nice to be able to get a good view of how these bars will look when installed.

Brooke M.
7/10/2025
What do you tow to where having the Hellwig was something you wanted, David? Glad to hear that shipping was quick!



Brooke M.
6/18/2025
Great to hear that on the new '25 Ford F-250 Super Duty, Jimmy! Also the feedback on instructions is nice to have. Good to know there are videos to help already out :) What are you towing to where you like having the sway bar installed?
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Wayne
9/4/2026
This is one of the best modifications I have made to my F350 carrying an Arctic Fox 990. Totally improved the ride on corners and rough roads.