If it's the A604 Ultradrive transmission, avoid using any Dexron fluid, even though that's what it says on the dipstick. Though it'll work, you'll have long-term problems. The A604 transmission requires ATF+3 (or ATF+4) -- this is what the service manual specifies.
Why Chrysler specified one type of fluid in the service manual, and something else on the dipstick is a mystery, and Chrysler should be ashamed of this.