Well, those are pretty bad, I would imagine you would have had a bad time had you engaged 4wd when you actually needed it. I have seen much worse that would not even allow another u-joint to fit in the yolks. If I was you I would try to get another drive shaft and maybe keep that one around for a possible back-up or something.
If the dealer was cool and interested in satisfying your concern, they could get you a replacement driveshaft. I would not be too concernec with a salvage unit other than it having a good slip yolk and new u-joints.
Keep in mind they dont owe you anything but that could have been a safety defect had it come apart going donw the road therefore they should have caught that on a inspection. I have seen failed driveshafts tear into oil pans, trans pans, shatter trans cases and blow out transfer cases, anyone of those could cause a bad accident along with leaving you stranded wherever you are.
If the dealer was cool and interested in satisfying your concern, they could get you a replacement driveshaft. I would not be too concernec with a salvage unit other than it having a good slip yolk and new u-joints.
Keep in mind they dont owe you anything but that could have been a safety defect had it come apart going donw the road therefore they should have caught that on a inspection. I have seen failed driveshafts tear into oil pans, trans pans, shatter trans cases and blow out transfer cases, anyone of those could cause a bad accident along with leaving you stranded wherever you are.