The Fuller- Transmission Kit-Inertia Brake is designed to reduce wear on the drivetrain and improve the performance of the Transmission. The kit includes all the necessary components for installation and is designed to be compatible with specific Fuller Transmission models for a perfect fit. The high quality materials used in the construction of the kit ensure that it can withstand the high stress conditions of heavy duty trucking. FleetPride is your First Click in Heavy Duty®.