A jackshaft and grain elevator arrangement is disclosed for agricultural combines. A grain elevator has a housing, a drive sprocket within the housing, a driven sprocket within the housing, and a chain within the housing. The chain is wrapped around the drive sprocket and the driven sprocket, and a plurality of paddles are attached to the chain. A shaft is fixed to and extends through the drive sprocket to drive rotation of the drive sprocket. A first pulley outside the housing is fixed to the shaft to receive power from an engine of the combine and is configured to transmit that power to the shaft. A second pulley outside the housing is fixed to the shaft to receive power from the shaft and is configured to transmit that power to a first crop processing device.