Hot Racing optional upgrade heavy duty splined star drive axle kit for the Traxxas electric Stampede 4x4 Slash 4x4 Rustler 4x4 and 2WD SlashFEATURES: - CNC machined #45 hardened carbon steel, S2 spring steel and Aluminum construction- Replaces factory plastic drive axles- Hard Black Anodized Aluminum Slider- Blue anodized aluminum pin capture rings with rubber o-rings to prevent movement- Design eliminated CV pin setscrew- Hardened S2 Spring steel wheel shaft - #45 Steel is black finish S2 spring in Brown finish- Rubber dust boot to keep the Splined Drive for maximum protection against the elementsYOU WILL RECEIVE: - Two (2) Rear Cv Splined Drive Shaft spline CVD shaft assemblies- Two (2) M4x2.5x11mm screw shaftsREQUIREMENTS: - Installation- Removable thread lock (blue threadlocking compound) on screws threading into metal- Light grease for CV joints and shaft slider splines helps maintain their longevitySPECIFICATIONS: - Approximate overall collapsed length: 113mmCOMMENTS: - Replaces factory plastic Traxxas parts- Replacement parts include: SLD425 (M4x2.5x11mm screw shafts)description revised by: SN October 10, 2018