Recent content by revluc

OK, here's the problem in a nutshell. I have a 97 XJ with a Rubicon 3" spring over add-a-leaf suspension lift with 31/10.50 AT. The truck runs awesome, except for the loud rumble coming out of the back end. It really sounds the loudest at about 3000 rpm's or on the freeway at about 65 mph. But...