Ok, What have I done now... (904 problem?)

I personally would not use ATF+4, or 7176 as Chryler calls it. It has friction modifiers for newer transmissions. Older transmissions use Dexron fluid. When in doubt, use Amsoil as it covers all the bases. Dex has changed over the years as regulations and transmissions have changed. You can probably find only Dex III now, instead of Dex II. All GM cars now use Dex VI, which is synthetic, and they use it in every GM tranny now backdated to the first use of Dexron. I would check the clearance as has been stated, and while the fluid is out, fill with the proper Dexron fluid.

Also, I know a lot of you talk about running low not causing damage. Maybe true for older trannys, but newer Mopar are very sensitive about fluid levels. Leaking tranny cooler lines cause many newer Mopars to run low, the planetaries overheat and explode. I have sold and changed hundreds of Mopar trannys in the 2000 years. In the 90's you used to change Caravan trannys every 60K.