My truck is a 2007 Silverado 1500 work truck trim. Couple years back while installing new speakers I had to remove the c-clip to get the crank off. I used the towel/rag method and that thing went flying and I couldn't find it for the life of me. Anyways, I've been dealing with the crank constantly falling off whenever I hit a bump for a few years...but no more! I've finally had it. Thing is, I can't find the c-clip I need? I've bought packs from hardware stores and Auto shops but they are all too tight. I've looked through truck diagrams but I don't see the clip. How can I get my hands on one?