Thorens,
A GMC could be different. But, I don't think so. The steering wheel, steering column and 3 speed lever, should all be painted this color. Even the linkage rod that connects your shift lever to the 3 speed shift transmission, is the same color. Nothing on the steering column was painted black from the factory. The actual shift knob should be a maroon color Leave the horn button alone. It is its own color. The only thing that is could be attached to the steering column, that could be black, is a dealer installed or aftermarket turn signal switch. For instance, a Guide brand model 6004. Hopefully that will help you. If any of you guys are more familiar with the GMC and I am incorrect, please let me know.
Hope this will help you with your restoration.
Rugo
