* Check the Vehicle Identification Number (VIN): This is the most reliable way to determine the original transmission. You can use online decoder tools or consult a dealership with the VIN.
* Look at the transmission itself: If you can access the transmission, there will usually be a tag or casting number that identifies it.
Common transmissions for that year and model include:
* SM465: A manual transmission.
* 700R4/4L60E: An automatic transmission. The 700R4 is a bit older, while the 4L60E is a later version. These are the most likely options.
Without more information about the specific vehicle (engine size, VIN, etc.), it's impossible to say definitively which transmission is installed.
