Crank Mounted Fan ID

[Barn Junk]

This fan came with some flathead parts but not sure of application. Appears to be for a 1939 deluxe thru 1941 Ford passenger car but not sure if there where differences through these years. Has 6 blades with three slightly shorter. "Radius" of log blades is 8 7/16 inches and shorter one is 7 5/16 inches. Hub length is 3 3/4 inches. Any experts out there to determine application??

 

[OLD...BILL]

BARN JUNK: You call it right, 39 deluxe and 40/41/( 42 ?) direct drive off the crank, I think trucks are the same ??... OLD...BILL

 

[41ford1]

Commercial vehicles are the same. That's the ones built on car frames. 40,41 pickups, sedan deliveries and panels have these fans.