I remember seeing some differences, but, I can't remember the applications. I think it had to do with the depth of the wheel which determined the angle the lever was bent. Also, the tilt wheels in the C-bodies were definitely different. In '66 they all have the same part number except for the tilt wheels. Not sure if they're the same exact part in '65 or not. The part number is 2661516 which seems too high for a '65 part number. Maybe got superceded?