Flange Kit Rear (ATC300)

You should look for symptoms like excessive vibration under the car, clunking noises when accelerating, or visible play in the driveshaft connection. If you notice transmission fluid leaking near the rear output of the ATC300 transfer case, it may also indicate a flange or seal failure.

Yes, this specific kit is manufactured to accommodate custom shaft sizes. It is designed to provide a secure and precise connection between two shafts, making it ideal for specialized drivetrain configurations where standard components might not fit.

The rear flange is the critical mechanical link that transfers rotational energy (torque) from the transfer case to the driveshaft. If the flange is worn, warped, or improperly seated, it creates slippage and energy loss, which can decrease the efficiency of your xDrive system.

The ATC300 transfer case is most commonly found in BMW 3 Series (E90, E91, E92) and 5 Series (E60, E61) xDrive models produced roughly between 2005 and 2010. Always verify your specific transfer case model before purchasing.

While standard automotive tools are used, you will likely need a torque wrench to ensure the flange is tightened to factory specifications. Because proper alignment is vital for the drivetrain, many BMW owners prefer having this part installed by a professional mechanic.