Thanks for help. I removed Int., carpets, oil pad covers, factory sealers and I noticed she has a factory 4 spd manual square hole with factory stamped plates on the top and under, I'm so confusing which is one mine had the factory th400 auto. in the group 2 - "Z" OR "B" 3-spd Manual Transmission Floor Shift. There's no code "B"... The whole body shell has never been cutted off or welded around to modified it.. it's all original body panels, included floor panels.

Body tag with red marked "Z" in the group 2:

721 04C
ST 67-22637 LOR22636 BODY
TR 260-Z K-1 PAINT
WL 2ZGS 3JF
5Y

Is that from the factory error or previous owner did swapped the body tags?? Just curious.

Close up pics in my photobucket.com:

http://s195.photobucket.com/albums/z64/W...moving%20Parts/

Added pic images and in my signature link: