Robert H Ball Ground , GA April 24, 2023 Appliance: Whirlpool Dishwasher WDT970SAHZ0 Whirlpool Dishwasher Wdt970sahz0: Roller assembly replacement. How to replace Dishwasher Upper Rack Adjuster Kit. Replaced the Upper Dishrack Adjuster Kit, excellent youtube video instructions Do-It-Yourself Rating: Repair Time Estimate: 15-30 minutes