Here's what you need to know to find compatible parts:
* Transmission: The 5.9L in a '97 Ram 1500 likely used either a 46RE or a 47RE automatic transmission. These are *not* directly interchangeable. The 47RE is generally considered a later, improved version. You *must* find the correct transmission code stamped on a tag on the transmission itself to be sure. Even within a 46RE or 47RE family, there can be subtle differences depending on the year and other options.
* Transfer Case: The most common transfer cases in this vehicle are the NP242 and the NP249. These are also *not* directly interchangeable. They have different gear ratios and internal designs. The differences in the transmission (46RE vs 47RE) might also influence which transfer case is compatible.
* Year and Build Date: Even within the same model year (1997), there can be changes throughout the production run. A late-model 1997 might have different parts compatibility than an early-model 1997.
How to find compatible parts:
1. Identify your existing transmission and transfer case: Look for identification tags on both components. This information is crucial.
2. Use a parts lookup service: Websites like RockAuto, AutoZone, Advance Auto Parts, etc., allow you to enter your vehicle's details (Year, Make, Model, Engine). Their databases should show compatible transmissions and transfer cases.
3. Consult a Dodge Ram parts catalog: A genuine Chrysler/Dodge parts catalog (possibly available online or at a dealership) will provide the most accurate information.
4. Check online forums: Forums dedicated to Dodge Rams (like DodgeForum.com or similar) can be a valuable resource for finding information from experienced owners and mechanics.
In short: Don't assume interchangeability. You must positively identify your current transmission and transfer case before looking for replacements. Using incorrect parts can lead to serious mechanical problems.
