Common transmissions used in 1994 Dodge Ram 1500s included variants of the 46RH (a 3-speed), the 46RE (a 4-speed), and possibly others depending on engine and options. Even within a family like the 46RE, there can be subtle differences across years that impact interchangeability.
Therefore, you cannot simply say which years will interchange without knowing the exact transmission code in your 1994 truck.
To find the correct replacement, you'll need to:
1. Identify your transmission code: Look for the code on the transmission itself or in your vehicle's documentation.
2. Use a parts catalog or online database: Websites specializing in auto parts (like RockAuto, Summit Racing, etc.) allow you to enter your vehicle's year, make, model, and engine to find compatible transmissions. These resources are your best bet for accurate information on interchangeability. Always double-check the specific transmission codes listed.
3. Consult a transmission specialist: A professional transmission shop can provide the most accurate information and help with finding the right replacement.
Simply relying on the year is insufficient; the internal components and even the bellhousing patterns can vary enough to prevent a seemingly compatible transmission from working.
