* SM465: This is a heavy-duty manual transmission.
* NV3500: Another manual transmission option.
* 4L60E: This is an automatic transmission.
To know for *certain* which transmission is in *your* specific 1994 S-10 4x4, you need to:
1. Check the VIN (Vehicle Identification Number): Decoding the VIN will reveal the exact options and components of your truck, including the transmission. You can use online VIN decoders or consult a Chevrolet dealer.
2. Look under the truck: The transmission's identification tag will be located on the transmission case itself. This tag will have a number that you can use to identify the exact model.
Don't rely solely on assumptions; checking the VIN or the transmission case is the only way to be completely sure.
