The answer depends on the truck’s engine and option package. In 1998, Ram 2500s with gas V8s typically used a 46RE automatic transmission, while Cummins-powered diesels commonly used the heavier 47RE automatic; a manual NV4500 five-speed was available on some configurations, particularly for diesel builds.
During the 1998 model year, Dodge offered both gasoline and diesel powertrains in the Ram 2500, with transmissions chosen to suit the engine’s torque and the intended use. Exact pairing can vary by production date and market, so confirming the specific unit on a given truck often requires checking the VIN/build sheet or the transmission code stamped on the unit itself.
Transmission options by engine
Below is a summary of the common pairings seen on 1998 Ram 2500 models, noting that exact configurations can vary by trim and date of manufacture.
- Gasoline engines (5.2L/318 or 5.9L/360) were commonly paired with a 46RE four-speed automatic transmission. A manual option was rare on most base gas trims.
- Cummins diesel engines (5.9L) typically used the heavier-duty 47RE four-speed automatic transmission; a manual NV4500 five-speed was available on certain heavy-duty diesel configurations.
Concluding: Because the 1998 Ram 2500 spanned multiple configurations, the exact transmission depends on engine choice and option package. VIN or build documentation is the most reliable way to confirm the original equipment on a specific truck.
How to identify your transmission
Use these steps to verify the exact transmission on a given vehicle. This can help if you’re buying, restoring, or performing maintenance.
- Check the transmission case or pan for a model stamp (look for codes like 46RE, 47RE, or NV4500).
- Inspect the gear selector: automatic transmissions use a column or floor shifter with PRND labels, while the NV4500 is paired with a manual shift lever and a separate transfer-case linkage.
- Read the vehicle’s VIN and use a Dodge/Chrysler VIN decoder or consult the dealership to map the VIN to the original transmission.
- Examine original documentation (window sticker, service manuals, or build sheet) for the listed transmission code.
Concluding: The VIN/build sheet is the most reliable method to confirm the transmission originally installed on a 1998 Ram 2500. If you’re checking a current vehicle, a technician can also confirm by cross-checking the transmission code stamped on the case.
Summary
The 1998 Dodge Ram 2500 offered multiple transmissions depending on engine and configuration: gas models commonly used the 46RE automatic, diesel models often used the heavier 47RE automatic, and a NV4500 manual was available on select diesel configurations. To know the exact unit for a specific truck, verify the VIN/build sheet or inspect the transmission code on the case or pan. This ensures accuracy for maintenance, parts, or resale considerations.