The Stovebolt Site Forums The Parking Lot Big Bolts Where to buy Big Bolt brake parts?

I am looking for a few brake parts for a 54 Chevy 4500 (1 1/2 ton). I had the front shoes relined, new bearings, but cannot find the following:

New springs, adjusters, etc. for the front brakes. 1 ton or smaller are easy to find, but the big bolts are hard. I tried Jim Carters, but they don't seem to have them.

Thanks!