miik19

you said you were having issues with the transmission also? if that came off the shift lever maybe something hit it pretty hard, could have loosened something inside. If you are still having issues with the transmission it can't really hurt to inspect the insides make sure nothing else is damaged. I had an issue with my kingquad, it wasn't shifting into low and reverse was an issue sometimes, turned out to just be a sprocket that jumped a tooth, it was a simple fix. 

looks like a dowel pin, there seems to be hollow ones and solid ones, not sure where it would come out of. it looks a lot like the thing this guy is trying to remove in this video here 

which case are you refering too?