Which of the following is the most common crossmember spread used in the sub-frame of a van semi-trailer?

A) 6-inches (150 mm)
B) 9-inches (230 mm)
C) 12-inches (300 mm)
D) 18-inches (460 mm)

Crossmember Spread

The distance between crossmembers, which are structural components that provide support and rigidity to a vehicle's chassis.

Sub-Frame

A structural component that provides support and attachment points for other systems or components within a larger framework, such as in vehicles or machinery.