I had a leaking pinyon seal. Removed it,measured the inside diameter of the houseing and outside of the pinyon shaft using a caliper. I searched the net found one to fit. It has a rubber seal. If yours has shims put them back the way they came out.
WTB 19” Demountable steel rim for wooden wheel. It’s to fit a 1930 Desoto CK. The closing mechanism is a cam lock system. Requires a special wrench. One of the rims I got was labeled Oldsmobile.