Chevy got 'em in 1936.

Same brakes passenger and 1/2 ton from '36-'48, 1/2 ton thru '50.

( Cars went to 5-lug drum ins in '49, but retained the Huck brakes thru '50.)

Frank McMullen
1941 Chevy dump truck
1949 GMC 100 pick-up
1954 Chevy 3600 pick-up
1955.1 4400 dump truck
1941 De Soto & other MoPars
1928 Model A F**D Special Coupe