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A couple of thoughts
A couple of thoughts:
My understanding of why there is a difference in the front and rear tire size has to do with the "Moose Test" - a reference to an incident involving a sudden apprearance of a moose during one of the early test drives, where the rear end of the vehicle suddenly broke loose in the avoidance manuever. I also think the difference in track derives from this incident as well.
It's a little known fact that the smaller the tire size (while holding the load on the tire the same), the less linear the steering response - meaning less predictable. The term is called "saturation".
In this case, the front tires are 74 Load Index with a placard pressure of 29 psi, and rears are 77 Load Index with 36 psi (max load carrying capacity pressure). I would think that would mean that installing the front tires on the rear is in the direction of less predictablility even if you compensate by using more inflation pressure. I think the vehicle darting around is an indication of this instability.
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