Jeff S Galion , OH December 19, 2023 Appliance: KitchenAid 4 1/2 Qt. Stand Mixer KSM75WH1 Kitchenaid Mixer Ksm75wh1: Pin worked out.of the worm gear assembly. How to replace Retaining Pin. Replaced with a new pin. The unit works perfectly. Do-It-Yourself Rating: Repair Time Estimate: 30-60 minutes