Installing new BMW 4 Series leaf springs can freshen up your tired suspension, and will help give your vehicle the ride height and performance you desire. Simply adding lift or lowering blocks to your otherwise stock leaf springs can lead to axle wrap, which hinders stability, so new BMW 4 Series leaf springs are a great way to prevent this from happening. If you still need more height or a lower stance after installing aftermarket leaf springs, a small block kit can help level your ride out and won't cause as many problems as using taller blocks would.

Aftermarket leaf springs are typically meant to lift or lower a vehicle, while at the same time adding some load capacity with a stiffer spring rate for better performance (some lowered leaf springs, however, actually have a softer spring rate for a better ride). Because of this, aftermarket BMW 4 Series leaf springs generally help prevent axle wrap and offer better stability and cornering than their stock counterparts. While some BMW 4 Series lift/leveling leaf spring kits come as complete leaf packs, others consist of separate leafs that must be added to your existing BMW 4 Series leaf spring packs. Lowered leaf springs, in general, come as complete leaf packs and are ready to install.

Q: What are leaf springs? Why buy them?
A: Leaf springs are a crucial part of your suspension because they not only act as springs but also serve to locate your axle to keep it from moving laterally or from front to back. Over the years leaf springs will wear out and lose some of their springiness. This can cause your vehicle to list to one side or sag extremely low. Fortunately new replacement leaf springs are available to bring your ride height back to spec and to restore your handling and ride comfort. In addition to stock leaf springs there are also leaf springs available that allow you to lift your ride to clear larger tires or lower your ride to increase handling performance and give a sportier aesthetic. This is a great way customize your suspension and tailor your vehicle for your specific driving requirements.

Q: Can any vehicle use leaf springs?
A: Only vehicles that utilize factory leaf springs would be able to incorporate replacement aftermarket leaf springs.

Q: How do you install leaf springs?
A: Your factory leaf pack must be unbolted from the front and rear perches. Then simply install the new leaf springs.

Q: What are leaf springs? Why buy leaf springs?
A: Leaf springs consist of several layers of metal "leaves" which are bound together to act as a single unit. They the primary suspension component used for the rear of most trucks, and are built to support heavy loads. Buying new lowering leaf springs allows you to lower the rear of your truck, since they are built with a different spring rate or leaf setup than factory springs. There are a number of ways to lower the rear of your truck, and buying new leaf springs one of the popular ways to do this. For an extreme drop of your truck, many people buy new leaf springs and a block kit, both of which add to the total amount of drop.