haha i haven't been here in a while since i sold my tracker but don't worry about that coil, it won't come off, you will here it sometimes when wheeling, just finding it's place, all good, mine used to do the same and i wheeled it all the time with no issues.

Im tellin ya, when its that low, the pigtail  at the bottom of the coil can easily flop right out of it's pearch and if you come down hard with the coil un-seated it could cause all kinds of damage.

The best thing to do is make some clamps that hold the pigtail in its pearch. and let those babies droop.