We use FedEx or DHL Express, the estimated delivery time is about 2-5 business days. Features: 1. A device that distributes the power of the engine, which can output power to the rear axle, or to the front/rear axle at the same time. 2. We maintain complete quality control throughout the manufacturing process. 3. Robust design and high-grade materials meet the stringent demands. 4. Meets or exceeds OE specification for fit, finish and function. 5. Stable performance,high reliability.Professional performance auto parts supplier. 6. Rigorously Dyno & Road Tested Package includes: 1 X Front Axle Differential Carrier OEM Part Number: 31508635861, 31507590899 31517588251, 31517588253, 31508635860 Fits (For the reference): 2019 BMW X6 xDrive35i 3.0L L6 - Gas 2018 BMW 320i Base 2.0L L4 -.
