Charles L Danielsville , PA April 12, 2024 Appliance: General Electric Dishwasher GSD4320Z04BB Ge Dishwasher Gsd4320z04bb: Upper rack rollers were broken and not rolling smoothly. How to replace Rack Slide End Cap. Removed and replaced the slide end-clips(2). Removed and replaced rack roller assemblies (4). Repair was easier than expected. The video by Appliance Parts Pros was very helpful. Do-It-Yourself Rating: Repair Time Estimate: 30-60 minutes