However, you should NOT rely solely on this information. The exact location varies slightly depending on the transmission type (automatic or manual – assuming automatic given the context of adding transmission fluid). Consult your owner's manual. It will show you exactly where the dipstick is located and how to properly check and add transmission fluid.
Failing that, a quick online search for "1993 Chrysler LeBaron transmission fluid dipstick location" along with your specific transmission type (if known, usually found on a sticker under the hood) will likely yield diagrams and pictures.
Important Note: Adding transmission fluid incorrectly can cause serious damage to your transmission. If you are unsure, it is best to have a qualified mechanic perform the service.