Front floor, 0.102 steel four brakes for stiffness.
Front and rear section of the floor. The tubular rail frame has the tendency to twist under load. The welded floors prevent the twist between the motor mount and rear axle.
Detail of the rear section.
The rear floor is 1 inch below the main rail top. The front floor is 2 inches below the main rail. The seat adjusters raise the seat bottom even with the top of the main rails.
