Dwight K East Dundee , IL February 07, 2016 Appliance: Whirlpool Undercounter Dishwasher GU1200XTKS0 Whirlpool Dishwasher Gu1200xtks0: Upper dishrack wheel had had broken off the bracket. How to replace Dishwasher Upper Dishrack Wheel. I viewed the repair videos at AppliancePartsPros.com for replacing this bracket assembly. The step-by-step directions made this replacement very easy. I could approach the replacement with confidence because of the clarity of the video. Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes