Drive element for gearbox output

An agricultural seeding machine for planting a crop, the seeding machine comprising:

• a frame;
• a seed meter is mounted to the frame for metering seed to be planted, the seed meter having an input member;
• a furrow opener is mounted to the frame for forming a seed trench in a field into which metered seed from the seed meter is directed;
• a gearbox is mounted to the frame, the gearbox is driven by a flexible rotatable drive shaft, the gearbox is operatively coupled to the input member of the seed meter by a drive element, the gearbox is provided with a gearbox output having a multifaceted drive opening;
• the drive element comprises a drive shaft having a drive coupling for drivingly engaging the input member, a multifaceted sleeve is mounted on the drive shaft and secured thereto, the multifaceted sleeve being received in the multifaceted drive opening and drivingly engaging the gearbox output.