1941-48 Passenger used a hidden upper hinge and an outside lower hinge. The lower hinge is the same overall dimensions, with different length and mount holes, as 1935-1940 passenger lower hinge and uses the same 9/32" pin. The upper hidden hinge is "different". It uses a larger hinge pin (5/16" inch dia I think, but don't quote me).
Obviously worn hinge pins can be a issue. However there are some more basic things that also need to be checked. First, make sure the hinges are solidly attached to the car and this is not a simple issue of tightening screws. Second make sure the attachment points for the hinge are in good condition and not flexing. It's fairly common to have a lower hinge pin seize and the door start breaking up and flexing.
Lift the door up and down. If there is movement its pins, screws, or structural. If the door is solid up and down its an alignment issue. General body to frame alignment and proper shimming does affect door sag. And, of course, the lower hinge can be bent to lift the door for proper alignment.