Location would be helpful in your profile.  We had Algona Machine make 2 for a Drago 1 16 row.  Ours had help I believe  by the peanut style slip clutch being packed full of dirt and no way to grease them. When we had them out we cut 2 windows in the drive sprocket to try to hit the grease zirc. Other issue those factory augers are crap. The auger tube is too light. They made ours 3/16" and balanced them. Good folks and excellent work