Juergen S Newport News , VA June 06, 2021 Appliance: KitchenAid 4 1/2 Qt. Stand Mixer Classic - Tilt KSM85PBSM0 Kitchenaid Mixer Ksm85pbsm0: Replace worm gear and bracket assembly. How to replace Worm Gear And Bracket Assembly. Replaced Worm Gear in 30 minutes, runs perfect again Do-It-Yourself Rating: Repair Time Estimate: 30-60 minutes