Traxxas 6878A slipper clutch for 4X4 vehicles is a durable replacement assembly designed to provide smooth, adjustable traction control and help protect your drivetrain from shock and impact during acceleration and rough driving. It helps absorb drivetrain stress, improves handling, and maintains consistent performance. It is compatible with Traxxas Slash 4X4, Rustler 4X4, and Stampede 4X4 models.