Booster update: Today I pulled the Bendix booster off the '42 G-7107 1.5 ton 4x4, and found a surprize. The booster under there was the same one as the one I pulled from a '49 gmc last weekend. Caked with grime, I broke out the hot water and tsp. When I got it cleaned up, found that the slave cylinder was stainless! This is different than the '49 booster which has a carbon cylinder. Perhaps the military specified ss to avoid the pitting I expected to find. I'll try to read the brass tag # and report it here so we can check the parts catalogs. Did the Army keep some of these trucks around after the war was over?
