Im posting here because the head we have is the same as a 74c. We have a 30' 2020 flex head which is a new Case IH head identical to the 74c. Is anyone having trouble with the auger rubbing on the trough. When we are cutting the auger has clerance in the center, but when we raise it the center touches. At first I thought the auger was sagging, but now I think the frame is flexing, and dropping on each end. Adjustments for the auger are all the way up. I think there are more New Holland heads out there of this model, I dont get any response from the Case chat. Thanks n advance