I ordered two of the lower dishrack wheel assemblies. The original wheel assemblies were easily removed and the new ones installed. It only took a few minutes for each one. I wished that I had looked at the original part more closely. When the other two assemblies failed, I was able to buy $6 of stainless steel bolts, washers and lock nuts to repair the others better than the original. Since I have already installed the parts, I spent over $50 that I didn't need to spend.