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 Lower Dishrack Roller W/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