Whats the overall longevity of a 96 plymouth voyager transmission?

ive been freading forums about these vans and mine has 174.000 on it and it shows no sign of slipping or anything but ive read that alot of people have replaced transmissions on these vans before 200.000 or shortly after. i dont know if its how they run them or what i drive it like an old man unlike my mitsubishi i keep constant maintenance on all my vehicles and have quite a few i jkust need a professionals word here.