This kit includes the Bilstein 5100 front shocks and our latest Armada billet 2" lift rear spacers. This kit offers 2" of all all around and works perfectly even with the rear air-ride shocks. There has bee ntalk of what settign to run the 5100 on before the ride quality decreases; on the Armada/QX56 even at the 2" lift setting rides well unlike some of the Titans because the Titans already sit taller. This kit is often instock, but sometimes we will drop ship the Bilsteins and send the spacers from our shop.