So has anyone else had their rear end seem like its in a bind (like a locker would be) when going from a dead stop into a turn in 1st gear?? It feels like the diff ISNT unlocking and it has a slight shutter through the rest of the car.. is this just the clutch or how the IRS is now? I the PP car, my 2013 Boss had the same diff and it didn't do anything like this, but it wasn't IRS of course. My car only has 475 miles on it.