The gear that directly drives the drive axles is the drive pinion gear, which works in conjunction with the ring gear in the vehicle's differential system. The drive pinion gear connects to the transmission output, enabling power transfer to the wheels. Other gears mentioned serve different roles in the overall system. ;
The drive pinion gear directly drives the drive axles by engaging with the ring gear in the differential system to transfer power. The other gears mentioned assist in the overall functioning but do not directly drive the axles. Therefore, the correct choice is the drive pinion gear.
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