Soul, if you're looking at the tires from the photo we have of the actual truck with the doors open, could you be looking at the tread right beside the front driver's side of the vehicle?
I believe that a might be a track left by the sudden stopping of a 4 wheeler as there is a parallel track to that one that appears to be near the same depth and the two look like they match or go together.
What I am trying to fathom is when those two tracks were left because if they'd been made at the same time the Jamisons truck arrived on its resting spot then the truck would've impacted the 4 wheeler, and I don't think that's what happened.
I do see what appears to be a very small pile of dirt in front of the driver's side of the truck that appears to have fallen off the wheel, but in order for the dirt to be there, it would've been flicked off when the truck was moving forward or jarred off when the truck came to a stop, and that's provided that we know for certain, the truck is in the exact position when found.
I'm kind of suspecting the truck was moved forward later due to the position, angle, and depth of the 4 wheeler track definitely made by a sudden stop IMO.
Then again, if a 4 wheeler made a sudden stop there, I would think we'd see evidence of it either backing up, messing up the tracks left behind or going forward, and the track seems to have come to an abrupt stop altogether--as if the 4 wheeler was lifted from it's position into the air. Very puzzling to me.
In looking at this yet again, I'm not quite as inclined to think these are 4 wheeler tracks made by one 4 wheeler, the reason being is that the 2nd. track to the left of the first, looking head on at it, should have that same veer or curve as the first, and I'm not seeing that. It should take place before the shade of the vehicle completely covers it up.