Will a 1999 transmission work in 1998 dodge ram 1500?

It *might* work, but it's not guaranteed. While 1998 and 1999 Dodge Ram 1500s are very similar, there's a chance of differences in the transmission itself (internal components, valve body, etc.) or the associated sensors and wiring harnesses.

To know for sure, you need to:

* Verify the transmission type: Determine the exact transmission in both trucks (e.g., 46RH, 47RH, 36RH, etc.). The same *type* is a good start, but doesn't guarantee compatibility.

* Compare part numbers: Find the part number for the transmission in both trucks. Matching part numbers are the best indicator of compatibility.

* Check for any updates or revisions: Dodge might have made minor changes between model years that affect transmission compatibility.

Simply having the same year isn't enough information. Even with the same transmission *type*, there could be subtle differences that prevent a direct swap. Without confirming the specific transmission details, you risk a costly and frustrating experience. It's best to consult a transmission specialist or a Dodge parts department for definitive answers.