According the the Hollander Interchange Manual, the 1965 Tempest Station Wagon Rear Door Assembly can be interchanged with 1964-1965 Tempest Station Wagon. The Rear Door Hinge (Upper & Lower) can be interchanged with a 64-67 Buick Special, 64-67 Chevelle, 64-67 Olds F-85, 64-67 Tempest. I don't see anything in the manual about rear seats, however for the front seats it is only interchangeable with a 64-65 Tempest.