Going down the highway my front drive shaft fell off. It came off at the point where it connects to the dana 18 transfer case. One of the U bolts had come off. It wasn't in 4 wheel drive though. The hubs weren't locked either. One question though is what is the proper orientation for the drive shaft is when putting it back on. U joints were the same on either side. Did I just not tighten the bolts enough? And where can you get a new one? Thnks.