Terry L Burke , VA September 02, 2019 Appliance: Whirlpool Undercounter Dishwasher WDF730PAYB3 Whirlpool Dishwasher Wdf730payb3 / : Top dishwasher rack fell off rail. How to replace Dishrack Stop Clip. Ordered the little stop part that keeps the rail from coming all the way out. My son and I watched the fix-it video and he helped me to put the part in the rail and put everything back together and it works great! 1 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes