Rose K Omaha , NE November 07, 2016 Appliance: Whirlpool 24" Ada Undercounter Dishwasher GU3100XTVQ0 Whirlpool Dishwasher Gu3100xtvq0: Rollers had broken off the lower rack of our dishwasher. How to replace Dishwasher Lower Rack Roller With Axle. Found parts by using model number, watched the video and ordered the parts. They came in two days. It took my husband about 5 minutes to attach them. Lower rack rolls easy now making life easier. Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes