Is the front locker on an XTZ more like a posi trac? I had mine engaged and it was acting like a posi trac, I thought it was supposed to be like an ARB. Also my belt was slipping when I was in high and 4wd. Should I take it to the dealer and see whats going on or is this typical? By the way I was in the snow so I guess the belt could have been wet. I have about 300 miles on it so the belt shouldn't be wore out yet.