1991 Dodge Dynasty Shudders While Shifting 1-2 and Reverse

Hello,

First, I'm not sure whether my Dynasty has the A413 or A604 transaxle. It's a 1991 3.3L. Has 1-2-3-D

This started suddenly and seems to be getting worse.

While shifting from 1st to 2nd, the car shudders a bit at a higher acceleration rate. When taking off slowly, it does not.

At a stop light, the car seems to drop into Neutral (even though it really hasn't), almost as if there is a gear lower than 1st, takes a bit more gas to get going from this state.

When placed into Reverse, the car acts as if the emergency brake is on. Lot of gas to reverse and when gas is removed stops suddenly.

Fluid level is good.