I was getting plastic in with ice.

Remove ice bin,remove screws that hold the cover, then remove circlip at the end of the shaft.Remember to stack grinder blades and spacers in the order they come off ,then remove plastic nut that holds the auger . Remove broken auger and install new one then reinstall grinder blades as you removed them . Insert shaft back into bin and replace cover. Place ice bin back in Frig. and your done. The ice guide just snaps in . Jr.