Can someone that knows Muncie transmissions let me know if this will go in my newly acquired 70 Z28? The shifter is a Hurst Super shifter.





The tranny has been polished and the raised casting #s look to be removed

 

LMK if I'm screwing up on my posts

 

My engine builder says it's a M21, Is that what came in a 70 Z28?

 

M21 or M22 is what came in the Z28,bolt it in and go!