...You might PM Homer52. Dave has both a 1946 and a 1941 1/2 ton pickup and might be able to give you some more info.
I was able to contact Homer52 and he sent me these photos of his pedal return spring setup on his '41 (photos look pretty similar). Nice little bracket that is bolted to the bellhousing. He said the brake spring goes under the clutch fork. I have two threaded holes in that location and now I'm thinking about fabricating a bracket similar to his. Looking at some old photos, I didn't have anything bolted there.
