Here's why it's complicated:
* Transmission Type: Both years used different automatic transmissions (likely 3-speed or 4-speed) depending on the engine and options. You need to verify the exact transmission codes (found on a tag on the transmission itself) for both cars. Even if they're the same *general* type (e.g., both 4L60E), internal differences might exist, creating incompatibility.
* Computer Compatibility: The transmission control module (TCM) and the engine control module (ECM) are interconnected. A 1997 transmission might require different programming than the 1996 computer is capable of providing. This could lead to transmission problems or non-functionality.
* Wiring Harness: The wiring harness connectors for the transmission might differ slightly between the years. You might need to adapt the harness or swap parts.
In short: Don't assume compatibility. Before attempting this swap, you *must* get the transmission codes from both vehicles. Then, consult a repair manual or a transmission specialist to confirm compatibility. Even with matching codes, there's a chance of unforeseen issues requiring additional work. A simple bolt-in swap is unlikely.
