I have had several Chrysler products over the years and anytime I used anything OTHER than ATF+4 in a car that calls for it I have had problems. MY Caravan had a shudder on TQ conferter lockup, It went away with the MOPAR ATF+4.
Personally I would not use anything else. That being said I have had the fluid changed in my 02 Ram ever 30-40k, I have no idea what brans the shop used but it was ATF+4. !60k miles and stil lgoing strong.
Scott