Transmissin ID tag

Alright, I know this isnt the proper place to post this, but it seemed like the best bet....I have been searching google now for hours and I cannot find a place to figure out ANYTHING! So, I'm posting it here and pleading for ANY help...

Okay, I found a couple of C-6's (i believe, it looks exactly like my C-6) and a C4. I took one of the C6's (it wasnt dirty at all) and cleaned it up a bit so it looks practically brand new. My father wasnt sure where the thing came from or off of what engine it was off, or even what vehicle it came off of. So I wrote down all the id numbers I found and went looking for some way to ID this tranny.

Here are the numbers I have and where they're at on the tranny.

Behind the shifter and kickdown, right before the tail, engraved in the tranny itself:
RF-D7UP-7006-A A

On top of the tranny, on the beginning part of the tail:
BCA24723 (The C was a little banged up and the C could either be an O or an 0)

On The bottom of the tranny, behind the pan, before the tail:
3263BO 41866

And Finally, what I THOUGHT would be the most help, a metal tag bolted to the servo plate (not sure if thats what its called...):
PGD BE14 K8
E1TP HA 01396


ANY help would be greatly appreciated! I would love to find out where this tranny came from and how old it is and such....