I plan on putting about 200 to 300 pounds of salt in the back of my S10 to improve the traction this winter, since it is rear wheel drive only. My question: is it better to place the weight directly over the rear axel or put it as far to the rear of the truck as possible? I was thinking there may be some mechanical advantage/leverage issue of putting it further back. I plan on building a wood frame to keep it from sliding around in the bed. Thanks!!