Hello Les. The 65 and 66 do not interchange as far as I know. Here are the part #s from the 674A catalog effective January 67.
64-65:4411072 4411073 2dr ht and conv.
66-67:9706198 9706199 2dr ht and conv.
Comes without glass and handle.
I had a 67 a while ago and used vent windows from a 67 Cutlass.
Good luck
John