Bob Drake's 1940 Convertible Window Regulators;
http://www.bobdrake.com/RNPA/RNPA-01A-6623200_1_Window-Reg.pdf
Okie: My apology to you. The window regulator pictured in Drake's new products announcement on the web is actually a '40 closed car unit, simply used prior to the actual production '40 convertible units were in stock and could be photographed. Drake's '40 conv. regulators are identical to the originals. Hit the following link into Drake's new catalog 26 pdf file and goto page 269 where the '40 Conv. regulators are correctly shown; http://www.bobdrake.com/CAT26/cat26pdfs/234-271.pdf