Surfer , take a look at my album, there should only be two, one goes behind the tooth wheel, and the other goes on the mount, I find it hard to beleive that they are missing, I just swapped mine for each other, and that was enough to keep it from working. I think that yours is just in the wron place. you know when you flip the mechanism into place.....the bolt that it pivots on... thats the other pace a washer goes. check to make sure you dont have what you need all ready.