since 1958, quarter master® has been providing winning clutches and driveline components to racers at every level - from super speedway to the bullrings, from irl to rally, from nascar to the weekend warrior. wheter it's on the straightaway or in-and-out of the turns, our products are built to exceed the racer's demand and need for reliability, high-performance and durability. our passion and our commitment are to the racer's goal: winning!