* Automatic Transmission: The fill plug is located on the passenger side of the transmission, towards the rear. It's often a bit difficult to access and may require some maneuvering.
* Manual Transmission: The manual transmission doesn't have a fill plug in the traditional sense. The transmission uses the same fluid as the differential, and the fill and check are performed via the differential. You will fill and check the transmission fluid via the differential fill and check plug, which is located on the rear of the differential housing, typically on the passenger side.
Important Note: Before attempting any fluid checks or changes, consult a repair manual specific to your 1988 Corvette's transmission type (automatic or manual). These manuals will provide detailed diagrams and instructions to ensure you correctly identify the plug and perform the procedure safely.
