In Reply to: BLACKSTOCK posted by DOUG on December 11, 2023 at 21:33:04:
I believe the Aluminum distributor housings were the part from 39 until the end of 1941. The war put an end to much of the use of aluminum in products not destined for the war effort. Suspect the steel distributer housing started in early 1942. Someone else may have better info on this.
Keep in mind that beginning of 1942 the steel allotment for tractors was stopped and it took a vigorous campaign by Harry Ferguson to lobby congress and FDR to get the allotment approved for the Ford/Ferguson tractor. Ford was the only one who got it in the amount needed to continue mass production of tractors throughout the war. As a comparison for the four years of war Detroit produced all of 300+ automobiles.