69Z on bring a trailer

[BillOhio]

Documentation for original drive train seems to be lacking.  I believe there was a comment numbers matched.  I noticed the 3 on the transmission has a different font than the engine.  Engine stamp is a lot clearer than mine.  Any comments on if either part is for that car? 
https://bringatrailer.com/listing/1969-chevrolet-camaro-z-28-rs-302-4-speed/