* 4L60E: A four-speed automatic overdrive transmission. This was very common.
* SM465: A four-speed manual transmission. Less common, but possible.
* NV3500: A five-speed manual transmission. Also less common than the automatic.
To know for sure which transmission *your* specific 1995 Chevy 1500 4x4 has, you'll need to check:
* The vehicle's identification number (VIN): A VIN decoder can often reveal the transmission type.
* The owner's manual: If you have the original manual, it will specify the transmission.
* The transmission itself: Look for a tag or casting number on the transmission case. You'll likely need to get under the truck to see this.
Without more information about your specific truck, it's impossible to say definitively.
