where to find gas tank brackets

[bigtruck81]

i'm looking for a set of fuel tank brackets for my 77 K20. i've got a brand new tank to go under it, and my current brackets are rusted to pieces. i remember seeing them in several catalogs before, but cant seem to find them now. does anyone know where i can get these brackets new? for those who are unclear im looking for the bracket that bolts to the frame, then the gas tank sits on top of it, with the strap bolted to the bottom of the bracket, then around the tank. any help is greatly appreciated.