I just need some opinions on my rear u-joint. I am supposed to drive 300 miles today and then 300 miles back on sunday for a weekend away. My rear u-joint has got a little play in it (5 degrees?) and I am wondering what the probability of it blowing up with that much consecutive driving is. I have just driven it around town so I havent worried about it. I have the replacement u-joint but have not had time to put it in. I am going to see if I can borrow a roommates car for the weekend but dont know how that will work out. If worse comes to worse is it a horrible idea to drive it that far with the bad u-joint? I know that if it goes I could have some damage down there but dont know if that takes trail carnage to damage it enough to disconnect and flop around underneath. Any opinions are appreciated.