* 4L60E: This four-speed automatic transmission was very common in this model year.
* 4L70E: Also a four-speed automatic, but generally found in models with larger engines or heavier-duty packages.
To know for sure which transmission is in *your* specific 2005 Chevy Silverado 1500 4x4, you should:
* Check the owner's manual: This will list the transmission type.
* Look at the vehicle's identification number (VIN): A dealer or online VIN decoder can provide detailed specifications, including the transmission.
* Check the transmission itself: The transmission case usually has a tag with identifying information, though this might be difficult to access.
Without more information about the specific truck, it's impossible to say definitively which transmission it has.
