Janet D Cedar , MI June 17, 2016 Appliance: Jenn-Air Dishwasher DW861UQP Jenn-Air Dishwasher Dw861uqp: Broken wheels on my jennifer wire dishwasher. How to replace Upper Dishrack Wheel Assembly. The Appliance parts Pros.com website is so easy to use. Just plug in the model ID and you have full schematics. Then each part is displayed. There are even videos for part replacement. My dishwasher is 20 years old and some of the small parts break. I never knew the end caps came off the upper track. for easy replacement of the wheels. Two minutes, it was like new. I use this site for all my large appliances. I am a nurse, not a mechanic, but am confident with the resources on this site. Thank you. Janet D Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes