You have a LeBaron GTC and it does not like to shift you changed filter and fluid and it shifts now but not good?
I wish I could help, but I have change fluid and filter 3 times
now and it still is giving me shifting problems. Sorry Make sure
you used the right fluid... ATF+3, #7176 specially formulated for
the Chrysler A604 (41TE) 4 spd automatic. I just returned from the
transmission shop who repaired leaks in my tranny. They put in the
wrong fluid and the car searched to shift and "bump shifted" into
1st when stopping. I made them put the correct fluid in... and
within an hour, the problem was gone. the A604 also has a
electronic shift solenoid which has been a bit of problem on these
transmissions, which will cause it to shutter between shifts and
down shift very hard, if it gets to severe the computer will only
let the trans. stay in first gear, until the computer can have the
code reset or flashed by the service shop. but this will repeat
itself if the shift solenoid is faulty.