The Grover book I have shows the following for 64 convertibles (first number is body code last number is production quantity):
735 270 convertible 6cyl 3898
745 GT convertible 6cyl 4752
L35 270 convertible 273-2 770
L45 GT convertible 273-2 2130
I have a 735 and L45 although they both are very much projects. I find it interesting that the 270 with the 273 is the rarest combination. One big disclaimer is that this book lists codes for all plants EXCEPT Newark DE which is where my L45 was built. So I don't know if these totals are overall stats from Chrysler or sum of the plants that are listed in the book. I've asked around and even posted messages to the author but never got any reply. Anyway, thought this would help with the question you asked.
View attachment 1715339350
