I have a 2007 Jeep Grand Cherokee $X$ Laredo. My question: How do I tell if I have a Quadra Trac I or Quadra Trac II?
If it has electronic limited slip differential and low range, it is Quadra-Drive-II. If it has low range but not the ELSD, it is Quadra-Trac-II. If it has neither ELSD or low range, it is Quadra-Trac-I.