I believe so and the torque converter has a better or more appropiate stall speed for this car. The 84 and older turbo 123s had a 3.07 rear end I believe. Plus a different transmission valving if not other changes inside.

Given a 1984 and a 1985 123 type in identical condition. Okay, I know that senario in reality is not possible. I still would be willing to pay a small premium for the 1985.