Park the mower on a flat surface and engage the emergency brake.
Slide a jack under the front frame of the Snapper and jack it up.
Locate the drive disk underneath the right-front bottom of the engine. The drive disk is a round metal piece with a rubber bushing, which is a round, hard rubber piece that functions like a washer. It is held in place by bolts.
Loose the mounting bolts with the socket set, remove the old drive disk and hold the replacement in place. Slip the mounting bolts into place and tighten them with the socket set.
Lower the Snapper down from the jack.