THE BASIC PRINCIPLES OF USED TIRE SHOP NEAR ME

Pickup truck body (correct rear view) A truck body is made of two parallel boxed (tubular) or C‑shaped rails, or beams, held collectively by crossmembers. These frames are known as ladder frames because of their resemblance to some ladder if tipped on close. The rails include a tall vertical area (two if boxed) and two shorter horizontal flanges.