Raymond O Bourbonnais , IL December 15, 2020 GE dryer start knob cracked where goes on switch shaft. Took the old knob off put on the new knob. I did notice the new knob had reinforcement on the shaft, which should help prevent cracking in the future. Saved my dryer with a one minute repair. Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes