The underside of a car is easy to overlook despite its integral role in keeping the vehicle together. One of the most unheralded parts is called the leaf spring, which helps form the suspension system. This thin piece of steel has a surprisingly long history stretching back to Medieval times. Here’s a look at how it has evolved from way back in human history to the present day. 

A Look at the Evolution of the Leaf Spring

Early Usage

Leaf springs appeared as early as the Roman empire as a form of primitive suspension for chariots and other two-wheelers. Instead of steel, savvy Romans used flexible wooden sticks. It wasn’t until 1804 that a young inventor named Obadiah Elliot designed a steel version. His leaf springs, made from two steel plates stacked together, helped smooth out carriage rides. Before, they were more likely to break down and offered an extraordinarily bumpy ride on rougher terrain.

Model T Twist

In the early 20th century, Henry Ford’s Model T was the car to buy in America. Ford’s leaf spring innovation was one of the elements that helped form these strong vehicles. Instead of lining the springs up by wheel, he set them up by each axle. The switch created superior strength and stability, giving him an opportunity to create a lighter and more appealing vehicle. For decades afterward, other cars would emulate his operational insight. 

Current Day

As coil springs replaced leaf springs on typical cars in the late 20th century, their primary use shifted to larger vehicles. These days you’ll find them below trucks, vans, and SUVs. Coil springs often can’t bear the heavier weights, whereas leaf springs are better at distributing weight across the chassis. Hundreds and hundreds of years since their first usage, these springs still play a major role in vehicle design. 

Located in Anchorage, Alaska Spring & Performance has earned a reputation as the region’s top providers of springs and suspensions. Offering everything from new leaf springs to vehicle alignment services, they’ll ensure your car or truck has everything it needs to stay steady on the road. To discuss your needs, call (907) 563-3802. Learn more about the steering and suspension company by visiting their website.