I have a craftsman 42 inch mower and the belt went bad and I was able to change it but once I had the new belt on when I pulled the switch to start the blades I had nothing...when the belt gave way the deck was up and I was running in first gear thru taller grass but going slow...the belt didn't brake but did loose some of the center material of the belt...not sure if its something I can fix myself but would like to try.