The G20 G21 rear Diff Repair Kit for BMW 320 330 330 M340 21~ is a high-quality rebuild kit manufactured by AcuNova in Germany. It includes all the necessary components to repair the rear differential on BMW vehicles, with a 1-year manufacturer warranty for added peace of mind. This kit is designed specifically for the specified BMW models and comes with a front placement option for easy installation. With OE/OEM part numbers provided for compatibility, this product ensures a precise fit and reliable performance for your vehicle.