i have a sbc 350 that i needed a trans for. my Grampa gave me a TH350 from "behind the garage". I've attached pics. i dont know if it even works or how to test it.
my main thing is i don't know exactly which TH 350 it is (seems like there are several: A,B, C, ect?) can anyone help me ID it or point me in a direction? i'm lost. thanks.

pics can be seen at my website...
http://themgroupfamily.homestead.com/claystruck.html

http://themgroupfamily.homestead.com/claystruck.html