need to know how to look for a real abody 4 speed car

Okay,

Thank you to all. I am looking for rear boxes but have never seen the fronts? does anyone have a picture of those?
If the car was a manual 3 speed car ( a lot of 318 Demons were 3 speed manual) it would have the hump and the Z-bar bracket.
Heck even the /6 cars manual had all of that, but this guy "feels" legit to my spidey senses. I just had never actually torn apart a 340 4 speed car before and I've striped aALOT of A-bodies in my day.
I never paid attention to the vin numbers stamped into the car either- Trunk drain rail by the quarter and the radiator support right? Is there any more I should look for?

You guys are great and thanks for the help.