Can anyone tell me the year of this 727?

My son has a 89 ramcharger and also used to have a 90 w250 both came with non lockup 727s.
He replaced the one in the ramcharger with a trans from 81 that is a pickup.i still have that 89, non lockup 727 in my garage.
And as late as the late 90s/early 2000s, dodge vans with the 3.9 and jeep wranglers with auto trans had a a 999 (version of 904) with non lockup. Have worked on "2 or 3" over the years.