An articulated harvester is composed of a forward bogey having an operators cab, an engine, a grain harvesting assembly, a grain transfer assembly, but being devoid of an on-board grain bin. A rearward bogey is attached by a joint to the forward bogey and has a powered wheel assembly, an on-board grain bin for receiving grain from the forward bogey grain transfer assembly, and a grain off-loading assembly. The forward bogey wheel assembly is powered by a first drive system. The rearward bogey wheel assembly is powered by a second drive system. Each of the first and second powered drive systems includes coordinated transmission and drive motors.
