transmission shudder on 1997 Lincoln Town Car

it happens every time i drive it. always at lower shift speeds never at higher speeds.

2 answers
Its time to vist a transmission shop and have them test drive your car and provide a diagnosis. Unfortunatly, when it comes to transmissions, all the working parts are on the inside and have to be removed to be checked and/or serviced.
I have read on several websites that you should have the transmission fluid replaced. Take it to a transmission shop, not one of those places that change your oil in ten minutes.