GP403 said:
Welcome to my world! 😀 They were an aftermarket kit made by a company called Cars and Concepts. They went under long ago. Your set looks identical to what I have. Treat those rubbers nicely because I don't think you can get them anymore. You can tell the difference from the stock kit because of the sheet metal behind the windshield, and the clamps instead of pins.
A place in MO called the sunroof doctor bought all of C&C's old inventory. They don't list the G-body kit/parts on their site, but they might still have something left. Been a long (long) time since I asked.
I have those tops also, if you could buy rubber for them, they would probably have a better reputationI never knew where to start looking until I noticed a 1977ish Ford T-bird with t tops, and his latches would have bolted into my car! Also I found out in my travels a rumor... that the same people worked directly with chrysler and their t top designs, my buddy is into mopar F and M bodies(aspen, volare, diplomat), his t top mechanisms are very similar to mine but will not interchange. Here is my 84 Hurst with the C&C roof...