Best I can recollect, all 1/2 ton chevy used 11x2 Bendix brakes front and rear with the same hardware from 1951-1962. From 1963-1970, 11x2, same hardware with self adjusters. This hardware can be used to convert earlier years to self adjusters. 1971-72, 11x2 used only on rear. Same 11x2 Bendix hardware was also used on similar year GM sedans and Corvair trucks. Also was used on F##d products.
