jane1958 wrote:
It's a gizmo feature in a car that makes the friggin back end off your car sway out in turns. I'm sure it's some saftey feature gone horribly wrong on my sister in laws tahoe.

Exactly..it is stupid, stupid, stupid.  Last night when I was coming home the roads weren't plowed.  I forgot to take the stupid posi-track off.  I was going up a hill with some good speed and the posi-track kicked in and I lost my momentum.  Then I got a bit stuck.  It was dark and I was sideways on the road on a hill.  Had to rock and feather the truck (with posi off) to get going.