FTX Vantage RC Car Complete Rear Differential Slipper Clutch & Drive Cup FTX6236 £24.99 Out of stock. FTX Vantage Spares Part Ref: Complete assembly: Rear differential, slipper clutch with 65T spur gear and central shaft cup as per listing photo. Part fits Vantage vehicles. Official FTX parts. Quantity Supplied: x1 Complete assembly as pictured. All spares are brand new, and have been carefully removed from a new unused vehicle.