* 4-speed automatic (TH700-R4 or 4L60E): This was a very common automatic transmission. The 4L60E was a newer, electronically controlled version.
* 5-speed manual (NV3500): Also a frequent option, particularly in lighter-duty trucks.
* 700R4: An earlier version of the 4-speed automatic, less common than the 4L60E by 1994 but still possible depending on the truck's specifications.
To know for sure what transmission is in a *specific* 1994 Chevrolet truck, you'd need to check:
* The vehicle identification number (VIN): This can be decoded to reveal the transmission type.
* The truck's build sheet (if available): This will list all the options, including the transmission.
* The transmission itself: The case usually has markings that identify the transmission type.
Without more details about the specific truck, it's impossible to say definitively which transmission it has.
