It did NOT fall out today when we were pushing the stainless ring back, and nothing like that is in the first (front) groove under the stainless ring. Believe me, Griz, this thing is not behaving as it should. I know how this should have worked: With effort, the stainless ring should move backward, collapsing the accordion boot, to reveal a c-clip (or original ring) which should then be removed. After that, take off the pump and just pull out the shaft. That's how it should work. But even with much effort using block of wood, hammer, tire spoons, pry bars, everything anyone has suggested on any thread, the stainless ring does not move backward more than the first groove (and only barely that far) because it is pulling the shaft with it. There is no c-clip in the first groove, and it still doesn't move back and forth. (The shaft will TURN independently of the stainless ring, but the stainless ring will not move backward independently of the shaft.) We've taken the pump off and put it back on repeatedly to try to just pull the shaft out, but that didn't work and the pump is currently back on. But maybe, since we now know that the c-clip isn't the problem, we should take the pump off again and manhandle the shaft to see if we can break whatever is holding it to the stainless ring.If I had known we could use zipties, I could have saved $10 on the clamps! That's okay -- if you can't afford a $10 mistake, you can't afford a boat, right? We do not have the alignment tool. Is that something worth owning? Or should we maybe turn all this over to the certified Seadoo shop? We want to be able to DIY as much as is practical, but maybe this isn't practical? Thank you for your insight.