Subframe connectors

You cant preload subframe connectors.....If you can please explain... we are not talking about Caltracs and the like... we are connecting point a to point b... thats all like a solid frame.... am i wrong?

Bowing the chassis, unnaturally. Maybe preload isn't the correct term lol. Turning your car into an inverted eaf spring may be closer, but semantics dude...