There were several transmission options for that year, including:
* 4L60E automatic transmission: This is the most common. It typically used Dexron III transmission fluid. However, it's crucial to verify this with your owner's manual because later specifications might have been recommended.
* Other automatic transmissions: There might have been other less common automatic transmissions.
* Manual Transmission: If your truck had a manual transmission, it would use a completely different type of gear oil, specified in your owner's manual.
Never guess the transmission fluid. Using the wrong fluid can severely damage your transmission. Consult your owner's manual or a reputable parts store, providing your VIN, to ensure you get the correct fluid.
