Re: 94 taurus wagon tranmission question?
Depends on how rich you are and how much you like the car. The problem requires a transmission teardown (or replacement) .. it's still cheaper than a new car. If the car is still drivable, I would still use it around town but the problem may get worse if you heat up the transmission by taking long trips.
Personally I like the car. I would get another Taurus or Sable (I see them in the paper for less than $1000) and trade out the transmission and any other parts I could use (I've already done just that with my own 3.8L Sable) ... but that takes a little money, heavy work, space and tools.