Hot Racing aluminum front c-hubs (caster blocks) for 1/10 Arrma 4X4 vehicles. See comments below for specific vehicle fit information. FEATURES: - Stronger and stiffer than stock plastic caster blocks- CNC machined 6061-T6 aluminum, anodized black- Metal kingpin bushings for smooth, accurate steering- Laser etched lettering- Replaces factory stock plastic c-hubsYOU WILL RECEIVE: - Left and right aluminum caster blocks- Four (4) kingpin bushingsREQUIREMENTS: - Installation- Recommended to use removable thread lock (blue threadlocking compound) on threadsCOMMENTS: - Replaces Arrma stock plastic AR330442 caster blocks and AR340138 flanged tube- Known to fit the following Arrma vehicle part numbers. The vehicle part number can be found on Arrma's website, the literature that came with the vehicle, or on the vehicle box around the barcode. If a vehicle is marked below with the word "optional, " then the part may fit, but may require some modification. - Big Rock 4X4 3S BLX: AR102711, ARA4312V3 (Crew Cab)- Granite 4X4 3S BLX: AR102666- Granite 4X4: AR102665 (green), AR102676 (red)- Senton 4X4: AR102667 (red), AR102678 (blue)- Senton 4X4 3S BLX: AR102668- Typhon 4X4 3S BLX: AR102696description revised by: SN February 8, 2019