Window Regulator Question

Hey Everyone,

I have a 66 Polara 2 Door HardTop. The drivers side window broke off the regulator. From looking at the pieces in the door it looks like there is a plastic plug that connects the window to the regulator. That piece has lived it's full life as 54 year old plastic and gave up the ghost. Does anyone know if you can just buy that plug that connects the window to the regulator?

Beyond that am I even thinking of this right as I'm really just trying to piece together the parts...

Window Regulator Question
Author: griswold00