attn; fastback experts, seat question

Legendary tells me that there is a differenc between 68
and 67 rear foldown seats.
The problem is that I want to run '67 buckets in my daughters '68 fastback because she is short and they seem to fit her better and we think they look better with
the moulded backs and chrome trim. But I want the upholstry to match, so I was going to order 67 seat covers.

Has anyone out there compared the rear seats side by side.
or have any idea what the differences are??????