<-- This is what I've been referring to as the "reverse lever", you can tell by the cable it is very loose and doesn't appear to be where it should be, When reverse is put in, the cable gets a bit tighter, but when put back into forward, doesn't go back where i suspect it should go.
But now also while taking the picture of the "reverse lever" I noticed something on each side on the axle, it appears there are bolts missing.
<-- that's from the left side, now if you look closely where that one piece SHOULD be is very clean compared to rest of that area, which leads me to believe it was bolted there at one point and the bolt snapped off.
The right side didn't exactly come out great, was very blurry so I won't post it, but its exactly the same way.
But discovering the possible missing bolts theory, it seems like it could also be that because when we did get the quad into reverse the back tires would bounce off the ground like crazy at first. If you need more pictures tell me of what and I can try my best to get to it.