We are the original owners of a 95 Z71 4x4. We have on occassion had to use the four wheel drive when hauling, and always going forward. Recently I used the Truck to move a dead tree from the driveway.I pulled forward to the tree,hooked up, selected 4x low and began backing. The right rear just spun in place.Is this the way a limited slip or posi-track works? Thanks, C.Patrick

No limited slip locks the left rear when the right axle is spinning. The right rear is your driver in a rear wheel drive axle. Sounds like you don't have limited slip or the clutches are shot.

Thank you for the information. How do I know that the differetial is a limited slip from the factory? We are the original owners. C Patrick.

If your right rear tires has always spun in mud or snow, then you didn't have LS or Posi.