[decooney]

Jase,
In theory that sounds great.

Chassis are doing the work in both cases. The point is, if the body is not bonded/rivoted somehow at specific points, there is a high probability of body movement which results in rattles, creeks, and squeaks from various points. The fewer the mounting points, the worse it is as the fiberglass ages and the mounting points wear in. This is proven by loose bolts showing up on non-bonded cars.