Sway bars: The most cost-efficient way to improve truck handling
Heavy-duty truck suspensions comprise hundreds of parts, with sway bars being one of the most important.
Also called anti-sway or anti-roll bars, sway bars keep vehicles from swaying from side to side. Not all trucks have sway bars, but they’re useful on big rigs and large commercial vehicles. Read on to learn what sway bars are, what they do, and how to tell when it’s time for new ones.
What are sway bars?
Truck suspensions have multiple parts, including springs, shocks, linkages, bushings, joints, wheels, and tires. Sway bars are OEM and aftermarket truck parts that help trucks handle tight turns and prevent body lean. The type and number of sway bars may vary by vehicle, but all attach across the body between the wheels.
What do sway bars do?
As previously mentioned, sway bars prevent body lean caused by sharp turns. When vehicles – especially large ones – turn, forces shift to the outside. Tires on that side will lift higher than those on the other side, but sway bars keep them level.
What are the differences between front and rear sway bars?
While front sway bars keep the front tires stable, rear sway bars provide additional rigidity to the back tires. Most trucks don’t come with both sets, but drivers often choose to install rear sway bars as an upgrade.
Companies like to get their additional truck body parts available here to enhance vehicle performance and tailor their trucks to specific needs. These upgrades can improve handling, increase load stability, and ensure a smoother driving experience on challenging terrains.
Why do sway bars matter?
Sway bars serve multiple purposes, with roll prevention being the most vital. Along with safety, truck sway bars prevent wheel misalignment and help trucks maintain their grip on the pavement.
What are the signs of a broken sway bar?
Now that you’ve learned what sway bars are and why they’re so important, you may wonder whether your truck needs new ones. The simplest way to assess the condition of a sway bar is to have a mechanic check it out. While waiting for service, note the vehicle’s handling characteristics and listen for clunking or rattling noises coming from the suspension.
How can you adjust sway bars?
Accurate sway bar adjustments may improve a large truck’s stability on winding roads and in tight corners. Start by adjusting:
- Stiffness: Most sway bars have adjustable links or multiple mounting points that allow for adjustment. Stiffening a sway bar reduces body roll while loosening it gives the suspension more flexibility.
- The load: When performing load distribution adjustments, consider cargo weight and position. A heavy load can benefit from stiffer sway bars, while a lighter load may need a soft setting.
By considering these factors, you’ll optimize the truck’s handling for its cargo and road conditions.
Why do large trucks need sway bars?
Due to their size, commercial trucks may lean significantly without sway bars. Not only will driving without these parts wear you down, but it also puts you at risk. If you’re planning a cross-country run, sway bars will alleviate body roll and make for a smoother, safer ride.
While you may have figured out that you need sway bars, finding the right ones may be tricky. If you’re not satisfied with how your truck handles high winds and sharp turns, consider upgrading its sway bars. Your vehicle and your body will thank you!
Adjusting sway bars is a must
Adjusting truck sway bars for optimal handling and load distribution isn’t just a maintenance task; it’s a financial and legal requirement. By understanding the basics of sway bars, following load distribution guidelines, and adjusting your suspension properly, you’ll keep your truck on the road for many miles to come.
