Looks like hole is there . You have to have handle turned in proper position and use that pin hole . not sure of position .Info is here do some searches . most period handles where same .Good luck .
The factory handle had one time hidden pinning . Is there any numbers and letters on it ? Show pic . I have made key for mine by measuring each pin s movement rough out unit and test and repeat .
My BOI for 1931 F model truck . Which is a car chassis combo . Mostly CM6 components . List fuild gear lube for rear and trans ( straight ) as SAE160 summer and SAE 110 Winter . I use Staybil 140 gl4.
The newspaper is day edition of Scranton Sun in northeastern Pennsylvania . Just south of New York state . I see some prominent names list of families still there ie Congressman Casey .
Sound to me like there saying frame and chassis are two parts both previously supplied by Dodge . Now Graham prebuilding on the frame and assembling to chassis at there plant or shipping separate .