First I want to say thanks for letting me join. I hope to learn a lot. I have a 04 Jeep wrangler Dr standard. I have owned it for a week and have started hearing a chirping noise from below that starts when warmed up and stops and starts at 30 mph and above. Also some sort of sound like a screw rattling around in a can that starts at 50 mph and stops at the same 28th vibration. Motor sounds strong, it shifts great and drives straight. Any help would be appreciated. Thanks.