To find the *exact* towing capacity for your specific 2004 Chevy Silverado 1500 with the 4.8L engine, you should:
* Check the sticker: Look for the sticker on the driver's side doorjamb. This sticker will list the maximum towing capacity for your particular truck.
* Consult the owner's manual: Your owner's manual will also specify the towing capacity based on your truck's configuration.
Don't rely on general estimates. Always use the information provided on your vehicle's documentation to determine its safe towing capacity. Towing beyond the rated capacity is dangerous and can damage your truck or cause accidents.