I had the middle u-joint in the drive shaft replaced at 53,000 miles. Yesterday I started getting a bad vibe again.... Took it in today and they said another bad u-joint They didn't tell me which one was bad this time, but did tell me they are going to replace all 3 I'm at 59,750 miles right now. So hopefully this will take care of it and there won't be anymore probs. but if there are, I hope it's before 71,750 or DC will hopefully take care of it, since it's been a reoccuring prob.

just thought I'd mention it, since about the same time my first one went I heard of a few others on here or TDR.

 

Wonder what the problem is? Mine still has the original U joints and center bearing. Thats about all thats original, but they are

 

Oh OH, you should not have said that Haulin

 

I'm starting to see the front u-joint on a few 4x4's rear driveshafts blowing grease out. These are on high HPp 400+ HP trucks. Of course, mine is one of them.