WJ doesn't sound good....

[28this]

Have heard a noise once before I put the lift on but it was only there for a few moments. Now that the lift is on, it might be faint, but I can hear it all the time over 20 mph. I am not experienced with axles and stuff. Can do a bit of automotive but not that. Took the WJ to NP yesterday and it really didn't sound good. I don't think it is the drive lines, even without the drop kit I temporarily have on it. It only does it in acceleration and once in a while when coming to a full stop. Does anyone know what it could be? It is my DD, so I can't afford to have it go down. I still have a aftermarket warranty on the WJ, but would like to see if I can find out exactly what the problem is before I take it in and they try to tell me it's something else that isn't covered. Anybody help, PLEASE?:confused: