Ensure your semi is Ready for the Road Ahead™ with a seamless transition of gears, with the Eaton 15.5" x 2" 10-Spring EverTough Manual Adjust Clutch. To permit the safe change of gears, this replacement component engages / disengages the engine from the transmission. Fashioned with top-tier materials to transmit maximum power, deliver a smooth engagement, and reduce drag. FleetPride is your First Click in Heavy Duty®.