Abstract: A leveling auger for an extendable height combine grain hopper is mounted onto supports pivoted on brackets so that the auger is effective to level grain in the hopper extension space when in a usable position. The auger will move grain into the regions defined by the hopper extensions. The supports can be pivoted to move the leveling auger to a lowered position. When in its lowered position, the auger is below the level of the hopper after the extension walls are folded down for clearance purposes. A separate grain level sensing switch is used for operating the leveling auger so that the leveling auger is run only when grain has reached a preselected height in the grain hopper.