This is the optional MIP X-Duty C-CVD Front Axle for use on the Traxxas Slash 4X4. FEATURES: Steel construction Black in color YOU WILL RECEIVE: One X-Duty C-CVD Front Axle One 3.5mm Locknut REQUIREMENTS: Installation on front drive assembly SPECIFICATIONS: Length: 40mm (1.57") Shaft Diameter: 5mm (0.20") lmm 07.20.10 ir/jxs &