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Do trucks still have leaf springs?


As a seasoned auto service provider, I often get asked about the relevance of traditional suspension systems in modern trucks. One of the most common inquiries is whether trucks still utilize leaf springs. In this article, we will explore the role of leaf springs in truck design, their advantages, and how they compare to newer suspension technologies.


Understanding Leaf Springs


Leaf springs are a type of suspension system that consists of multiple layers of metal (or composite) strips, known as leaves, which are stacked together. This design allows for flexibility and strength, making them particularly suitable for heavy-duty vehicles like trucks. Leaf springs have been a staple in automotive engineering for decades, primarily due to their ability to support heavy loads and provide a stable ride.


Current Use of Leaf Springs in Trucks


Despite the emergence of advanced suspension systems, leaf springs are still widely used in many trucks today. Here are some reasons why:



  • Load Capacity: Leaf springs are renowned for their ability to handle heavy loads, making them ideal for commercial trucks and vehicles designed for towing.

  • Durability: The robust construction of leaf springs allows them to withstand harsh conditions and heavy usage, which is essential for trucks that operate in demanding environments.

  • Cost-Effectiveness: Leaf springs are generally less expensive to manufacture and replace compared to more complex suspension systems, making them a practical choice for many truck manufacturers.


Comparing Leaf Springs to Modern Suspension Systems


While leaf springs remain popular, many modern trucks are also equipped with alternative suspension systems, such as coil springs and air suspension. Here’s how they compare:



  • Coil Springs: These provide a smoother ride and better handling, especially on uneven terrain. However, they may not support as much weight as leaf springs.

  • Air Suspension: This system offers adjustable ride height and improved comfort, making it suitable for luxury trucks. However, it is more complex and can be more expensive to maintain.


Conclusion


In conclusion, trucks still utilize leaf springs due to their unmatched load-bearing capabilities, durability, and cost-effectiveness. While newer suspension technologies are gaining traction, leaf springs continue to play a vital role in the design of many trucks, especially those intended for heavy-duty use. As the automotive industry evolves, it will be interesting to see how these traditional systems adapt alongside modern innovations.


Frequently Asked Questions

What suspension is on 2024 Tacoma?


The TRD Pro trim includes a specialized off-road suspension with FOX® QS3 adjustable internal bypass coil-overs. Meanwhile, the all-new Tacoma Trailhunter trim features standard Old Man Emu® 2.5-inch monotube position-sensitive shocks.



How long do leaf springs last on a truck?


On average, a set of leaf springs might last about 200,000 miles. This number can range widely from case to case — it's hard to say how long your leaf springs will last in your unique situation. Keep your eyes and ears peeled for symptoms of wear and tear.



Why did they stop using leaf springs?


Leaf springs were very common on automobiles until the 1970s when automobile manufacturers shifted primarily to front-wheel drive, and more sophisticated suspension designs were developed using coil springs instead.



Do trucks still use leaf springs?


Popular models like the Ford Ranger, Toyota Hilux, Nissan Navara, Volkswagen Amarok, Ford F150, Isuzu D-Max, Toyota Tundra, and Toyota Tacoma still rely on leaf springs.



How much does it cost to replace leaf springs on a truck?


How Much Do New Leaf Springs Cost? The average cost to replace leaf springs ranges from $450 to $790 if you hire a professional. These estimates include the cost of labor in addition to the springs and parts. The cost of the installation alone could range from $95 to $170 depending on where you go.



What are the disadvantages of leaf springs?


The ride comfort isn't as great because of the inter-leaf friction between each leaf. Over time, the springs tend to lose shape and can sag. When the sag is uneven, it can alter the cross weight of the vehicle which can affect the handling slightly. This can also change the axle-to-mount angle.



When did they stop using leaf springs?


Leaf springs were very common on automobiles until the 1970s when automobile manufacturers shifted primarily to front-wheel drive, and more sophisticated suspension designs were developed using coil springs instead.



What's better, leaf spring or coil?


Coil spring suspensions provide more range of suspension movement and allow the user a wider turning envelop through the suspension range than the leaf springs. Practically all high-performance applications use coil springs where possible if the budget permits.



Can you drive a truck without a leaf spring?


Leaf springs are crucial components of your vehicle's suspension; driving with any damage to the spring pack puts yourself, your passengers, and other drivers at risk.



Does 2024 Tacoma have leaf springs?


2024 Toyota Tacoma SR
Standard features include 17-inch steel wheels, a leaf-spring rear suspension for robust performance, LED headlights, keyless entry on the driver's side with push-button start, a composite cargo bed, and a Class IV trailer hitch receiver with seven-pin wiring.


Kevin's Auto

Kevin Bennett

Company Owner

Kevin Bennet is the founder and owner of Kevin's Autos, a leading automotive service provider in Australia. With a deep commitment to customer satisfaction and years of industry expertise, Kevin uses his blog to answer the most common questions posed by his customers. From maintenance tips to troubleshooting advice, Kevin's articles are designed to empower drivers with the knowledge they need to keep their vehicles running smoothly and safely.