When things go awry...

Sucks when you buy a part, wait for that part to arrive to finish an open task and then discover that the part doesn't fit.

The square shaft of the speedometer cable does not fit or engage the speedometer.

How awesome.

Fortunately, I have one GEMO speedometer cable that I can use for now.  I was hoping to get both of them working without having to tear into the GEMO parts.