i noticed that too, i dont have any info in Alldata besides flat rate

 

I had one with ABS go at 60K. the other is still fine at 92K

 

That's still pretty rare. Water and dirt are the enemy of these things as once they get in they have nowhere to go. On my Ramcharger and Power Wagon I used to remove the hub, clean and repack it and then RTV it back onto the knuckle instead of depending on the machined surface seal. Never had one fail. Once I'm able to walk again I will be pulling the hubs off my RAM to inspect them.