So, I removed this mast from a 1964 Fleetwood. Question is what will the bezel match for sheet metal shape. I think... If I remember correctly the mast was mounted to the 1964 fender. But im not 100 percent sure. it's been a sometime from when I remove the mast. Hope the pictures are good enough to ID this mast and bezel. Thanks Folks for your input.
Last month I removed my antenna assembly from my '63 Cadillac, and sent it out for rebuilding, as the nylon cable that extended and retracted the mast was no longer attached to the mast. Apparently this is a common problem. The rebuilder, who is a member of the '63/'64 Chapter of the CLC, included a new mast, as well as cleaning and lubricating the motor. If I understand your question correctly, the bottom end of the assembly and ground wire attaches to a bracket that is mounted to the inside of the wheel well, not the inside of the fender itself. Reinstalling the unit is a lot easier if you have a helper up top to guide the mast into the hole in the fender. The photos that you posted appear identical to mine. I can email you the appropriate pages from the shop manual if they are of any value to you.