Donald A Anthem , AZ June 22, 2020 Appliance: Whirlpool Dishwasher WDT750SAHZ0 Whirlpool Dishwasher Wdt750sahz0: Roller wheel on upper rack became detached from the adjuster assembly. How to replace Dishwasher Upper Rack Adjuster Kit. I ordered the new adjuster kit and it solved the problem. Entire repair only took 20 minutes to do both sides. As other reviewers have shared, the new adjuster assembly completely replaces the old one and is of much better construction. Very pleased with the outcome and quick shipping. You will need a t15 Torx driver for the screws and a flat blade screw driver to pry apart the old assembly. Do-It-Yourself Rating: Repair Time Estimate: 15-30 minutes