I am the second owner actually the third my neighbor had it for a month then sold the 97 tj sport to me. My question is I suspect some diff work has been done when I jacked up the jeep in neutral in 4wheel mode the rear tires tracked the same direction as well as the front this is when i rolled the tires from the rear either side did not matter. al wheels moved same direction, now when I went to the front and spn the wheels by hand the front tire I moved and both rears would move the other side front tire would not indicating a limited slip i believe <img src="/forums/images/graemlins/confused.gif" alt="" /> I am trying to figure out if some one did some custome work or is it that trac-loc system? I know it would be easy'r to ask the original owner but he is pissed my at my neighbor who sold the jeep to me and wont answer any of are questions on what has been done internally.