At the 40,000 mile mark, and starting to notice a thud when taking off from a stop, actually a couple of clunks, kind of like when a brake cylinder has a delay releasing. But my guess is its the 2 piece drive shaft making this. I have a 2wd so the bulletin referred to only 4wd, but now I am thinking this might be a problem down the road, its not awful yet, but I would hope this could be fixed?