The Dayton Parts Trailer 1.5" / 28- Spline / Left Camshaft is the perfect solution for your trailer's braking needs. With a spline diameter of 1-1/2" and 28-Spline teeth, this camshaft is designed to fit seamlessly into your trailer's braking system. This camshaft is a reliable and trusted choice for your trailer's braking system. Designed for Intraax 16-1/2" ES applications, this camshaft is built to reduce noise and vibration during braking, resulting in a smoother and quieter ride for both the driver and passengers. FleetPride is your First Click in Heavy Duty®.