Hey guys quick question. I'm trying to hunt down a noise when i put it in drive or reverse there is a loud creaking noise coming from the rear, only when i do that, when i drive i hear nothing, when i jump up and down on the bumper nothing. Its like when it loads the suspension to move the truck its there. I was thinking maybe something leaf spring related but i wanted to get other opinions or maybe get lucky and find someone who has had this same issue.