Stereo Bracket?

[THE "10" SILVERADO]

Did our trucks (mines a 77) come with a stereo bracket?

My old stereo is held in place by two nuts on the knobs but since I just got a new CD player that will require me to cut the dash I don't know how I am supposed to mount it.

I want to put it in the stock radio spot but I don't have a bracket to hold it up. Do any companies make reproductions or something? For some reason I have a hard time believing that my radio is only supposed to be supported by the two nuts and I think at one time it probably should have had a bracket.

Thanks and Merry Christmas!