PS- I didn't actually disprove any of Newtons laws, its just that Newton didn't have a problem with this issue, as there were OTHER FORCES, such as the tire being pushed down by the LEVERAGE of the stuffed side tire (Fulcrum) and the FORCE of the weight of the truck on the upside leaf pack, pushing the drooped tire down....using the axle as the lever.

Your calculations left out this lever arm force, which in fact provides MOST of the down force on a drooped tire, regardless of what kind of shackle you have.



As a tire droops, the weight is taken off that corner AT THAT LEAF PACK...but...the truck weighs the same, and the weight is transfered to the OTHER pack...which PUSHES DOWN THE AXLE on the drooped side.



Newton still loves me.

Come on Porsche...admit Newton is OK with this.

Are you OK with Archimedes?



I'll buy the beer since I didn't actually disprove any of Newton's laws, or Archimedes, merely applied them.