* 4L60E: A four-speed automatic overdrive transmission. This was the most likely option.
* 700R4: A four-speed automatic overdrive transmission, though less common than the 4L60E by 1995.
* SM465: A four-speed manual transmission. Less common, especially with the V8.
To know for certain what transmission is in *your* specific 1995 Chevy 1500 V8, you'll need to check:
* The vehicle identification number (VIN): A VIN decoder can often tell you the transmission type.
* The build sheet (if available): This document from the factory will specify the options, including the transmission.
* The transmission case itself: Look for markings on the transmission casing, though this requires some mechanical knowledge. You can find photos of the different transmission cases online to help you identify it.
* Your owner's manual (if you have it): The owner's manual will list the specifications of your truck.
Without more information about your specific truck, it's impossible to say definitively which transmission it has.