1929 Tudor rear widow regulator

[Rojo]

Anybody have a fix for the left rear window regulator on my '29 Tudor - the window handle was broken off many years ago. I haven't tried to remove the upholstered panel covering the regulator yet but was wondering if there might be a fix without replacing the regulator with a repo...I think the pot metal shaft the handle was attached to is the culprit. I need that window to go down when it's hot here in Texas and so my dog can stick his head out in the wind. Maybe I can ask a more detailed question after I get a look at the regulator.....