My speedo gear popped loose in my transmission the other day. I can stick my finger in the hole and I can feel the gear towards the back of the tail housing, but I can't feel the little metal retaining clip. Do I need to take this thing apart again and get it out? I'm kinda afraid it will find its way in 5th gear and chew everything up. I have put probably 100 miles on the transmission since this happened. Has anyone had this happen to them? What did you do?