* 4L60E 4-speed automatic transmission: This was standard with the 4.3L V6 engine.
* 6L80E 6-speed automatic transmission: This was standard with the 4.8L V8, 5.3L V8, and 6.0L V8 engines.
It's important to note that this information applies to both the Chevrolet Express cargo van and the Chevrolet Express passenger van model years. If you need more specific information about your specific Express model, you can check the vehicle's owner's manual or use the VIN number to get detailed specifications from a vehicle history report.