What transmission is in a 2003 3500 Chevy van?

The 2003 Chevy Express 3500 van typically comes with a 4-speed automatic transmission, specifically the 4L80-E transmission. This heavy-duty transmission is designed to handle the demands of larger vehicles and is commonly paired with the van's V8 engines. However, it's always advisable to check the specific vehicle's details or the owner's manual for exact specifications, as options may vary.