Are you planning on duals anytime soon? If so, I'd keep the 2 piece, mabye make a spacer for the carrier bearing, so it can hang a little lower, and ease the angle a bit, and then replace it with a 1 piece when you go to duals.
the 2 piece will still work, mine worked fine with a 4" lift with no spacer, until I got duals and replaced it. If its still in good shape, there really isn't a reason to get rid of it yet IMO
