I just got my 12,000 mile maintenance done (oil, 5 tire rotation, inspection) and since then I have noticed a low humming sound coming from the rear of the vehicle. It almost sounds like rubbing but I checked all the possible areas, no rub, and it doesn't change pitch with acceleration either so I don't think its that. It isn't constant either and happens at all different speeds. Could it be some sort of reverb/resonance from the tires, really bad alignment, or lugs in some strange synch or something? Any ideas would be greatly appreciated.

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-Great spirits have always encountered violent opposition from mediocre minds. -Einstein
-'07 KJ Sport
-Skink Super Sliders, Mopar Skids, Huskys, 245/70 16 Grabber AT2s, Hooks, Warholamo Rails, Black Widow Roof Rack
-Up Next: Lift?

I would guess tires. Different wear patterns can cause noise for sure.

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2002 Liberty, 3.7L auto, Franky

I noticed that since I have gone to the 5 tire rotation that my tires make a lot more noise for about the first 300 miles. Its not as noticeable since the MT/R's are pretty noisy anyway but there is a difference.

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'06 Stone White, CRD Limited
CRD Frankenlift II, Rock Lizard Rear Bumper, Mann Provent, GDE FT-ECO Tune, "Euro Torque Converter, Transgo 545RFE-H2 Shift Kit, 245/75 MT/R's on Moabs, Full Mopar Skids, Front Tow Hooks, CAT 2 Fuel filter and bleeder valve mod, Fumoto valve, Wahlbro Lift Pump, Custom 2 1/2" Exhaust

Thats kind of what I was thinking but not really sure. I figured if anyone knows, the people on here would for sure. Thanks for the responses.

_________________
-Great spirits have always encountered violent opposition from mediocre minds. -Einstein
-'07 KJ Sport
-Skink Super Sliders, Mopar Skids, Huskys, 245/70 16 Grabber AT2s, Hooks, Warholamo Rails, Black Widow Roof Rack
-Up Next: Lift?