On my 53 the previous owner had stripped the tines or splines as well on the handle and the window regulator. What he did was drill a hole thru the screw hole in the handle, right thru the splined shaft on the regulator and stuck a pin in. You could use an epoxy to hold it in place.
BUT don't forget you have done it. No one told me about mine and when I could not get the handle off I put some 'effort' into, snapping the splined shaft.


1949 Chevy 1/2-Ton
"Sedgewick"
In the Gallery
1989 Caprice