That transmission is September of 1969, making it a 1970 transmission, not an early 1969 as listed. The stamp on that case is P9P10 P= Muncie, 9=1969, P= September, 10= 10th. Here is a 69 stamp comparison from a Camaro Muncie that I recently sold. I don't know why that transmission listed isn't stamped "C" for M22, as it should being a 1970 trans.
