I have the oem 2 peice steel that came off my truck at 75k miles when I replaced it with a one piece aluminum. NO problems with it, only reason I replaced it was that the center bearing bushing was torn and I used the opportunity at the dealer to get the one piece at a lower price. Probably even have the center bearing brackets, bolts and bearing, though like I said the bushing is slightly torn.
Don't know about shipping it as obviously it is long and heavy. Where are you located??