* Automatic Transmission: The drain plug is typically located on the bottom of the transmission pan. You'll need to get under the truck to see it. The pan is usually a fairly large, somewhat rectangular metal piece attached to the bottom of the transmission. The drain plug is usually a bolt, often slightly recessed.
* Manual Transmission: Manual transmissions typically have a different drain plug location and sometimes even multiple drain plugs. Again, you'll need to be under the truck to locate it. Consult a repair manual specific to your truck's transmission type (e.g., Getrag, NV3500, etc.) for precise location.
Before attempting any work:
* Consult a repair manual specific to your 2001 Dodge Ram's year, engine, and transmission type. This is crucial for accurate location and proper procedure. A general repair manual or online video might not be accurate for your specific model.
* Place the vehicle on a level surface and properly secure it with jack stands. Never work under a vehicle supported only by a jack.
* Warm the transmission fluid slightly by running the engine for a few minutes. This will make it flow more easily.
* Have the correct size wrench and a drain pan ready.
If you're not comfortable working on your vehicle yourself, take it to a qualified mechanic. Improperly draining transmission fluid can cause significant damage.