Prev Next 1.0 Suspensions A suspension is a system that relies on all the components working in harmony to perform their given function. When one part gets worn, the rate of stress transfer to other parts accelerates, so early detection of any wear will prevent major repairs and provide long-term savings for the truck owner. Suspensions are designed to: Carry the load Provide stability against side sway Transfer driving and braking forces between frame and axles Resist drive and brake torque wind-up Produce suitable riding and cushioning properties Maintain axle alignment parallel to each other and perpendicular to the frame Provide minimum changes in drive axle pinion angles and slip joint movement Minimize load transfer between axles on tandems Provide sufficient vertical movement on tandems to maintain traction Components Making Up the Suspension System Include: Leaf springs Air springs Torque Rods Bushings Spring pins / Shackle kits U-bolts Shocks Section 3.0 Suspensions At-A-Glance Did You Know? A truck can have one of many types of suspensions. A key method to to identify which type you have is to look between the wheels and identify the visual elements that match closest to your suspension. Click Section 3.0 Suspensions At-A-Glance for a helpful visual guide to a variety of suspensions. Prev Next