I have a 2005 QC CD. The issue I'm having is when I take off when truck is cold, the truck makes a whirring/moan sound but only when cold. Is really hard to deifne where it is coming from possibly rear-end? Anyways its kinda weird because for the first 9000k it didn't make this sound and now it does. Only thing diferent is i went to bigger tires 265's -305's but the sound was still there with the smaller tires. Does anyone else have their 2005 QC CDiesel doing the same?[:@]