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Truck Suspension Repair

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At LA On-Site Fleet Services, we offer comprehensive inspections and maintenance for truck and trailer suspensions. Our experienced technicians will ensure that your suspension is in optimal condition for a smooth and comfortable ride. Contact us today to schedule an inspection and keep your vehicles performing at their best.


Heavy-Duty Suspension Systems

Air-type suspension and leaf spring suspension are the two primary suspension systems used in modern trucks and trailers.

Air-type suspension relies on airbags or air springs to support the weight of the vehicle. These airbags are filled with pressurized air, which can be adjusted to provide a smoother ride and better handling. Air suspension systems are known for their ability to absorb shocks and bumps, offering enhanced comfort and stability.

Leaf spring suspension, on the other hand, utilizes multiple layers of curved metal strips called leaf springs. These springs are stacked on top of each other and are attached to the vehicle's frame and axle. Leaf springs provide support and absorb shocks by flexing and distributing the weight evenly.

Understanding the differences between these suspension systems is crucial for operators and fleet managers, as it helps in identifying potential issues and performing the necessary repairs and maintenance. At LA On-Site Fleet Services, our experienced technicians are skilled in diagnosing and repairing both air-type and leaf spring suspensions, ensuring that your trucks and trailers operate smoothly and safely. Contact us today for expert suspension repair services.

Leaf Spring Suspension Systems

Leaf spring suspensions are commonly used in trucks and can come in two forms: semi-elliptical leaf springs and parabolic leaf springs.

Semi-elliptical leaf springs were commonly used in trucks manufactured before 1970. They consist of multiple layers of curved metal strips, with a consistent thickness throughout the length of the spring. These leaf springs have a sliding motion, allowing for flexibility and absorbing shocks and bumps.

Parabolic leaf springs, on the other hand, are typically found in trucks made after 1970. They have a varying thickness and a curved shape, giving them a more modern design. Unlike semi-elliptical leaf springs, parabolic leaf springs do not have a sliding motion. Instead, they offer improved ride comfort and handling by providing a progressive spring rate and better weight distribution.

Understanding the differences between these two types of leaf spring suspensions can help in determining the appropriate maintenance and repair needs for your truck. At LA On-Site Fleet Services, our knowledgeable technicians are experienced in working with various suspension systems, including leaf springs. Contact us today for expert suspension services tailored to your specific truck's needs.

Air Suspension Systems

Air suspension systems are a popular type of suspension used in trucks and trailers. They utilize one to two airbags per axle on each side to provide a smoother and more comfortable ride compared to leaf spring suspensions. Airbags are inflated with compressed air to support the weight of the vehicle and adjust the ride height.

However, air suspension systems can encounter issues such as leaks or faulty hoses, which can affect the system's performance and lead to potential problems. Regular inspection and maintenance of the air suspension system are crucial to ensure its proper functioning.

Another type of suspension, known as air-leaf suspension, combines the benefits of airbags and parabolic leaf springs. This type of suspension is commonly found in specific truck models, such as Peterbilt, Kenworth, and Freightliner. Air-leaf suspensions provide a balance of load-carrying capacity, ride comfort, and stability.

At LA On-Site Fleet Services, our skilled technicians are experienced in working with different suspension systems, including air suspensions and air-leaf suspensions. We can diagnose and repair any issues with your suspension system to keep your truck or trailer operating smoothly. Contact us today for reliable and professional suspension services.

Contact Us

Contact our mobile technicians at LA On-Site Fleet Services today to schedule your heavy-duty suspension maintenance or repairs. We're here to keep your business running smoothly and efficiently.

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