Ron,
I have a '51 and the rear are Bendix. I've helped with a friend's '50 and they were Hucks. I believe the first year for Bendix was 1951.
Mark
That's correct for 1/2 ton. Medium Duty trucks (3/4 and 1 ton) used Huck brakes until 1952 and went to Bendix in 1953.
