Holy sh!t-balls ... I really thought something was going to be broke in this transmission. Turns out the input seal had fallen inside the transmission, it has almost no land to seat on. As I pulled the input retainer off the seal stayed on the shaft but the seal looks perfectly good. I'm going to buy a new one anyways hoping it press fits in better. Is also a small matter of cleaning a whole lot of lubricant off of a friction surface ...
