Pit Stop USA is The Online Motorsports Superstore! Quarter Master provides winning clutches & driveline components to racers from Super Speedway to the Bullring...from IRL to Rally...from NASCAR to the "Weekend Warrior"! Quarter Master began operations in 1972, and since that date, Quarter Master racing products have enjoyed a long history off track-proven race-winning results. Quarter Masteras passion and commitment is to the raceras goalawinning! Quarter Master products are CNC-manufactured by an experienced staff to the toughest quality standards to outlast and outrun the competition. Whether itas on the straightaway or in-and-out of the turns, Quarter Master driveline products are designed to give the racer the winning edgeaand a racer winning with Quarter Master products is what fuels Quarter Masteras passion! Quarter Master winning quality products include Quarter Master Clutches available in Metallic, organic and carbon clutches in open or closed style, in single or multi-disc set-ups. Quartermaster offeres Quarter Master Bellhousings, Quarter Master Aluminum Bellhousings, Quarter Master Magnesium Bellhousings, Quarter Master Steel Bellhousings, Quarter Master Flywheels, Quarter Master Flexplates, Quarter Master ring gears, Quarter Master Hydraulic Throw-out bearings, Quarter Master Throw Out Bearings, Quarter Master Starters, Quarter Master Bellhousing kits including Quartermaster clutch, Quartermaster bellhousing, Quartermaster flywheel, Quartermaster throw-out bearing and Quartermaster starter, Quarter Master Aluminum driveshafts, Quartermaster Steel Driveshafts, Quarter Master Heavy Duty Quick Change Gears, Quartermaster standard duty quick-change gears, Quarter Master Cambered axle tubes and Quarter Master drive flanges. Quarter Master has a proven winning combination to fit your racing application!