S2 Spring Steel - front center drive shaft WORKS WITH: Axial Yeti 1/10th Scale Electric 4WD - Kit - AX90025 Axial YETI 1/10th Scale Electric 4WD - AX90026 Axial Yeti SCORE Trophy Truck 1/10 Scale Electric 4WD RTR - AX90050 Axial Yeti SCORE Trophy Truck 1/10 Scale Electric 4WD Kit - AX90068 Length pin to pin- 103mm Ball dia- 7mm Outdrive cup inner dia- 7mm