The split pin 4x63 for the Citroën 2CV drive shaft nut is a crucial fastening element that ensures nuts remain securely in place on the drive shaft. Made of high-quality metal, this pin is designed to easily fit through drilled holes in the nut, then bent to lock it in place. It prevents loosening during driving, avoiding mechanical damage and safety risks. Essential for maintenance and restoration of the iconic 2CV, it provides reliable performance and peace of mind for enthusiasts and mechanics of this classic vehicle. Always ensure the correct size and material for optimal compatibility and durability.