My BIG truck parts store had everything but the drums for both my '56 8400 & 57 10500. They had some stuff on the shelf and had the rest in a day or two (return springs, cylinders, axle seals, shoes, adjusters etc.).
Mike
Mike Boteler
1956 Chevy 3100 Resto Rod 1952 Willys M38 Army Jeep 1983 Jeep CJ7 Laredo 1984 Jeep CJ7 +++++ Silver Spring, MD