Sorry, I didn't quite understand some of the post....
I think that most shops, dealers etc. are just lookin' for cash....
YES, GET THAT OTHER STUFF DRAINED FROM YOUR TRANNY ASAP, IT COULD WRECK IT OR DAMAGE IT! YOU MUST USE MOPAR ATF ONLY!
What I would do is obviously first make sure that the tranny was service properly. Have the tranny rebuilt or possibly have them rebuild it again if has failed again. Make sure if you take it to a tranny shop that they KNOW the Ultradrive A604 transmission or else forget it, have them give you your money back if the service didn't do any good and go to a Chrysler/Dodge dealer.
It sounds from the other posts you have made, that the tranny shop or shop(s) you have dealt with aren't doing a good job with this tranny.
I would talk to a reputable/knowledgeable Chrysler/Dodge dealership. Although not the greatest sometimes either they shouldn't play games with the tranny fluid etc.... They also have repair manuals and service documentation from Chrysler specifically in regard to these transmissions plus the experience and usually a bigger reputation that they need to uphold.
I would find out if your first gen will work with the new Mopar Type 9602 or Type 9606 ATF+4 which is used in the new Intrepids. The Type 9602 and 9606 is suppoedly improved but I just don't know if it will work well in the first gen tranny's but I am almost assuming it will. I think that Chrysler has been trying to merge over to ATF+4 for most 91 & up vehicles. I would use the 9606 if it will work fine in a first gen. Ask a dealership or Chrysler mechanic if that would be recommended. Perhaps talk to another even to get a second opinion.
Sometimes I'll call a dealer to ask a certain question. Sometimes they don't wanna tell you shhht but sometimes they'll be cool and give you a decent answer. They also sell these fluids and could get business from you anyway so they should be able to give you an answer.
I would believe that perhaps your TCM could need resetting because it picked up funky shift patterns with that other Dexron/Mercon crap and/or the major problems you have had.
Again, check your vehicle for fault codes as soon as the vehicle get's back from tranny service just to make sure that the TCM/TRS is most likely working properly.
Again, after making sure the tranny was serviced properly and getting the right fluid in there.... I would have the TCM (Transmission Control Module) flashed with the latest Chrysler revision right after service. You could also have the PCM flashed as well with the latest revision while it's in. The PCM (Powertrain Control Module) update will give you better gas mileage, the TCM update can sometimes improve shift patterns and Transmission performance. There were also bugs in some of the earlier TCM revisions with some of these vehicles. Both updates should cost around $60.00 - $90.00 and is usually well worth it.
After this, disconnect your negative battery terminal for 15 minutes to reset the PCM and TCM.
Drive the vehicle easy for a while and let the tranny shift through all four gears in Automatic. Then after a while romp on it a few times.
If you have problems after this, the tranny service was probably not performed properly!
I hope this information helps....
[ January 30, 2002: Message edited by: MoparPerformance ]