Todd,
There aren't any "stores" for the old Big Bolt parts. If the part needed isn't shared with the 1/2 ton trucks it's a good bet that it's not being reproduced. The exception to this is machanical stuff like gaskets, seals and bearings, which can still be found new.
Place a "want add" here in the Sovebolt "Swap Meet", read Hemmings and check eBay is my best advise...
Happy Hunting!
Mike B
