BMW 7 Serie 728 I IL E38

It depends on the vehicle's wheelbase and gearbox type. The iL model has a longer propeller shaft than the standard 728i. Select your car's make, model and engine in our search tool to find the exact length and flange specification for your vehicle.

Vibrations at this speed are often caused by an unbalanced propeller shaft or a worn centre bearing. They can also be due to a faulty flex disc (quibo) that no longer centres the shaft correctly against the gearbox.

Yes, it is possible to replace only the centre bearing, but this requires dismantling and splitting the propeller shaft. It is often safer and a more long-term solution to replace the complete prop shaft if the joints also show signs of wear.

The flex disc is a rubber coupling between the gearbox and the propeller shaft. It should be replaced if it shows cracks or if you feel jerks during acceleration, as a damaged disc can lead to secondary damage across the drivetrain.

Yes, all our complete propeller shafts are supplied pre-balanced from the factory to guarantee vibration-free driving and maximum comfort straight after installation.

If you hear a heavy thumping sound from beneath the car under acceleration, the centre bearing rubber has likely torn completely. This is an urgent issue that must be rectified immediately to prevent damage to the chassis and gearbox.