In a fit of rage when the bowls tipped over for about the millionth time in 8 years, I took the broken clip out and "googled" the markings on the clip, which brought me to the AppliancePartsPros.com website. It took me about 5 minutes to actually find the correct part, but I found it for $5 + $8.50 shipping and handling. I ordered it immediately and put the broken clip back on my dishwasher rack.
When I received the clip, I replaced it which took a couple of minutes, mostly because I wanted to be careful and not break it. Now, 8 years later, my dishwasher rack is as good as new!
Needless to say, I was very proud of myself! My wife's reply: "I wish you would have done this 8 years ago..."