hey guys im new to this site plus i just puchase a 1997 dodge ram pickup 5.9L 4x4 p/u and i just love it. It has a 6inch suspension lift with a 3inch body lift and 39.5 iroks and with a front an rear 4.88 gears. I do have a couple of questions i hope somebody can help me with. Im not 100% formalier with my dodge but what is d/d means plus i bought the truck and is there a automatic front locking hubs or what when u put it in 4x4