"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.

[Big Grin]

Newton still loves me.

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

Yep. It does.

And with an open differential, it doesn't matter. Soon as one side loses enough traction to spin, it's end-game. Doesn't matter if the full weight of the truck is on the opposite tire; it still won't move.