Hi,
Finally sorted out my front brakes this weekend. Someone had apparently installed a pre-war Chev front truck axle with post-'54 car brake backing plates on the C8.
Got around it by installing 1960 truck six-lug hubs and brake shoes, 1946 wheel bearings, races and seals, '55 wheel cylinders and 1990 Chev 4x4 drums,(same drums as the rear).
Sounds extreme, but it did solve the problem, and gave me the much better brakes I needed to match the ones on the late model rear axle.
Had a very depressing moment when I found that one of my two wheel adapters was damaged beyond use. The stud holes were worn completely through, and the lug nuts would literally fall through three of the holes.
Will have to weld up the holes and have the stud holes re-drilled and tapered to fit the lug nuts......
Thanks, David