99 5.2, pretty much all stock except for catback system. When backing or going forward slow it has a squeak coming from the rear that's high/low like a rubbing squeak. I don't think it's shock mounts or stabilizer bushings because it does it backing out of driveway or pulling into garage or away at a stop light. I have checked the brakes, cleaned everything and it still has the squeaks. Has anybody every had this?