The transmission shifts "hard" into gears. on 1995 Cadillac DeVille

Startinig out in Drive it shifts like a kick in the rear end and it does that until you are moving along around 40-50 then all is smooth as silk. Everytime you start out, it shifts hard or jerks you forward. some times when you start it up and put it in reverse, it really hits you hard with a much stonger kick...

Asked by for the 1995 Cadillac DeVille