So today I started the truck(2012 titan crew cab (sl I believe) it's the bf's, and I heard a huge thump and bang underneath. this truck is his baby. I had the oil changed a month ago so not that.I continued backing out of the driveway and heard it a few more times. It seemed to feel ok and shifted fine. i heard the thump again and it shook the truck. I'm not a mechanic but i know enough to be dangerous. it sounded like the trans but it isn't. i came home a few hrs later to find fluid puddles under the left front and rear wheels. I checked the fluids and everything seemed fine. I looked under it and found wet spots on the front and rear at either end of the drive shaft. Any suggestions? I spoke to him on Skype this am because he's overseas at the moment. If it's what I think it is Christmas is kinda screwed because he wont be home til a week before that.