Stephen E Edmond , OK April 16, 2023 Appliance: Whirlpool Dishwasher WDT730PAHB0 Whirlpool Dishwasher Wdt730pahb0: Broken roller on the upper rack. How to replace Dishwasher Upper Rack Adjuster Kit. Replaced the Upper Rack Adjuster Kit. The YouTube video was very helpful. Do-It-Yourself Rating: Repair Time Estimate: 15-30 minutes