As far as car suspension goes, leaf springs are pretty much dead and buried. But when it comes to the suspension of vans, trucks, trailers and other heavy duty, commercial vehicles, leaf springs continue to be one of the primary choices for supporting suspension. In this article, we will look at a brief history of leaf springs and the advantages and disadvantages of the modern day leaf spring, before summarising the reasons why you would choose leaf springs for your van, truck, pickup, bus or trailer. A Brief History… As an entity, you’ll be able to trace leaf springs right back to the

One method of identifying a leaf spring is using the O.E.M. part number. O.E.M or stamping numbers are located on various areas of the leaf spring. You can quickly search for OEM part numbers and SRI numbers by entering the part number in the search box at the top of this page.

A leaf spring is made by placing steel boards of different lengths one above the other. The required load rate and strength of the leaf spring is achieved by optimizing the thickness and length of the steel leaves. The ends may be tapered so that energy absorption efficiency is enhanced.