The thing is...why do you want a spool when you're NOT at low speed? I suppose for drag racing or mud bogs, but you would lock it in before you start. I just can't see the logic in running through snow drifts at 45MPH and flipping the switch. Some factory applications won't even engage the locker unless you're in 4L. For sure, I've turned mine on and off at low speeds many times with no noise or issues. Of course, I'm going straight at that point.
But logically, the differential has no idea if the vehicle is going 0 or 100. The only thing that matters to it is the difference in speed from one side to the other. For sure, dropping in a mud hole, shooting a one-wheel rooster and flipping the switch is a bad idea.
But logically, the differential has no idea if the vehicle is going 0 or 100. The only thing that matters to it is the difference in speed from one side to the other. For sure, dropping in a mud hole, shooting a one-wheel rooster and flipping the switch is a bad idea.

