Larry C Milford , IA December 15, 2017 The upper rack top left track had failed and several of the small ball bearings were missing The replacement part was a snap to replace after watching a You tube video. The entire job only took 15 - 20 minutes after I pulled the dishwasher out. Thanks for the great service on getting my order delivered so quickly. Larry C Do-It-Yourself Rating: Repair Time Estimate: 15-30 minutes