Does anyone have a GM parts book for the 81-88 Cutlass models that can look up a GM part number for me?

[88hurstolds]

This is one I removed from an 86 Cutlass yesterday

That mast is supposed to unscrew from that threaded base, probably seized.

 

[gnvair]

Yeah I realized that it was supposed to separate. I heated it lightly and melted some candle wax into it and it came apart. Since I last posted I assembled the Cutlass antenna into my Regal fender and it appears that it's a bolt-in swap. The lower reinforcing bracket holes in the Regal inner fender are in the exact location for the Cutlass antenna.