I wanted to piggyback and see if anyone else deals with this. It started yesterday. When I take off the truck makes a metal clunk sound and I'm pretty sure it's drivetrain. Don't think it's what axle wrap is. I think it's u joints then I found this last night on the front most u joint. Anyone know what this is? Taking it to a shop tomorrow but it's really stressing me out. I'll post a picture in a second. It won't let me for some reason