Hi, I'm stumped. Washing machine would not agitate or spin. I replaced agitation assembly, clutch with proper spring and motor coupling. All original problems appear to have been repaired. However, now, when washing maching enters a spin cycle, a knock or loud scrap sound occurs. hard to describe sound. But as spin cycle picks up speed, knock gets quieter and and quieter and eventually goes away for the remainder of spin. Perhaps something has changed of got loose due to pulling or shifting drum during diassembly or even when laying machine back to get drive shaft down from washer. If anyone can help, it is greatly appreciated. Thank you!