I'd want to see the floor of the feeder house and the conveyor floor in the combine. Probably means removing both the feeder house and the rear conveyor chain. At 2100 separator hour, I have just replaced the floor sections under hte rear conveyor - part of it is a structural component of the combine. It was worn thin enough that a stone split it open! If auger flightings, conveyor and elevator chains and rasp and helical bars are not recent, you are in for some serious repair bills. How old is each bearingIJ I've replaced 90% in my machine. Dealer offered me $21,000 for 4WD combine plus 318 flex and 6RN corn head.