What is the difference between a Truck Underbody Kit and the Car Underbody Kit?

Car Underbody Kits comes with (2) 36-inch or 30-inch (Front and Rear tubes) and (2) 46-inch or 48-inch tubes (Side). 

Truck Underbody Kits comes with (2) 36-inch or 30-inch (Front and Rear tubes), (2) 46-inch or 48-inch tubes (Sides) plus (2) additional 24-inch underbody tubes that are designed to be installed on the side of the vehicle behind the 46-inch tubes. These additional tubes help fill any void areas of lighting from the front to side and side to rear lighting too.