muncie/saginaw 3spd date stamp and casting numbers help

[zwigandt]

its looks like muncie or saginaw,  i know its a 3 speed. main casing # 3852882   gm1 the other main casing # gm8 395265  and the number 8 or 6 not sure the serial tag on one the side plate bolt 3968081 and the date stamp is M1k31A this number is clear as day was under a ton grease. I cant find nothing on this trans.this transmission has my curiosity peaked it would be nice to know what this transmission is. thanks for any help

[zwigandt]

oh,,, the main casing is 11" to 11"1/4 inches long from where the bell housing bolts on to where the tail shaft bolts on

[bertfam]

3952656 is a Saginaw 3 speed used on the following cars:

Ed

[zwigandt]

so its worthless scrap metal...

[zwigandt]

3952656 is a Saginaw 3 speed used on the following cars:

Ed

thanks