This Schumacher Racing Products factory replacement slipper adjuster is designed for the Cat PB 4x4 buggy platform. The metal adjuster allows you to dial in slipper clutch tension to tune power delivery to the drivetrain. It is a direct-fit replacement when the original adjuster becomes worn or damaged. Features: Metal construction for durability Threaded central bore for slipper clutch adjustment Side set-screw port for secure locking Direct replacement for Cat PB 4x4 drivetrain 7/7/26 cs