Need help to ID a tranny

Hey guys I have this 4 speed tranny I am planning to rebuild for my 35 chevy project. It came with a parts car I purchased, The guy told me it was a Muncie 4 speed out of a 69 GTO. I cant prove this I tried looking up all the casting numbers but no lock. If any of you can tell me what kind of tranny this is I would be very grateful. Thanks

Tranny info
Casting numbers
Right side C-15475
Left side C-13550-1
Tail shaft "left side" C-15402-1[IMG][/IMG]

other casting numbers I found on Tranny
CG 1210501
15590107
5/22/86??
282786
3Ao586

Thanks for your time
Tom :)
here is a pic of the tranny.
http://img218.imageshack.us/my.php?image=mvc026snr2.jpg

"Need help to ID a tranny "

Look for an adams apple or a bulge that shouldn't be there if you know what I mean... :D

Sorry I couldn't resist.

Here,s two places to try they have helped me. www.mack,strans.com or www.dandltransmission.com Hope you find what you are looking for.

Weren't the Muncies from that period cast in Aluminum? 1986lt1boy's pic shows some rust like a cast iron would.

I did find this too: http://www.hotrodders.com/forum/4-sp...-d-127950.html

Thank you all for the help. It seems like I have a truck tranny that was mentioned in pelligrini's link. Now I can start my drive train project.
Thanks again guys :)

Muncies had the reverse lever in the back of the trans, same as Borg-Warners. The only trans that had the reverse lever in the side cover for that era was a good old Saginaw. All cast iron (had one in a '68 Camaro).