Michigan Truck Spring is an accredited business with the BBB.
Brake Camshafts
These tough brake camshafts for steer axle applications will keep you in control while slowing and stopping for your heavy duty truck or tractor.
These rugged brake camshafts for drive axle applications have the stopping power you need for your heavy duty truck or tractor.
These durable brake camshafts for trailer axle applications are strong enough to stop even the heaviest of loads.
Xtreme Cams feature a unique cam bushing that runs the entire length of the camshaft. These brake camshaft & bushing systems are for extreme duty air brake systems.
Brake Camshafts

Restore your brakes to their peak level of performance with a new brake camshaft (S-Cam) for your truck, tractor or trailer. Even under normal conditions your S-Cams can become worn or damaged. When the S-Cam becomes worn, the effectiveness of your braking can suffer. This is why it is important to replace your brake camshafts whenever they show signs of wear. S-Cams are available for each axle type and are made in many varieties so it is essential to know the measurements of the camshaft that is being replaced.


The Brake Camshaft is a part of the brake linkage for heavy duty truck air brakes. The camshaft is the component responsible for spreading the brake shoes apart. In air brake systems, the brake chamber expands and the operating rod pushes on the (brake) slack adjuster. As the operating rod pushes on the slack adjuster, it rotates around the shaft of the S-Cam. When the camshaft is rotated the eccentric shape of the cam head pushes the brake shoes apart. The brake shoes separate and cause friction between the brake lining and the brake drum. It is this friction that slows and stops the vehicle.

When replacing the camshaft of your brakes on your truck, tractor or trailer, it is very important to replace the bushings, washers, seals and lock rings. These components should be replaced together to avoid uneven wear between these items. Such uneven wear can lead to excessive camshaft deflection, causing your brakes to function improperly or even fail.

Welcome to Michigan Truck Spring & TruckSpring.com

Since 1926, Michigan Truck Spring has been installing and using the same high quality truck parts that you'll find on our website. In fact, we install everything we sell, and have been selling online as TruckSpring.com since 2001.

Whether you're looking to overhaul your truck suspension, or make a minor repair, our mission is simple - to make sure you have the quality parts you need, and to become your trusted source for truck parts.

Located in the heart of the Midwest, Michigan Truck Spring employees are trained technicians in truck parts and repair. We're here to help, whether it's selecting the right product for your vehicle, an installation question, or a maintenance question, we'll help you through your project. We work hard to make sure you get the right parts for the job. You won't find a company more passionate about truck parts than Michigan Truck Spring.