The truth is, that the drivetrain is the least of your concerns
++++++++++++++++++++++++++++++++++++++++++++++Not true, I had a Suburban that had a ring gear go bad prior to the 36,000 mile warranty cutoff. Then shortly after that the dealer had to replace two of the U joints. Both were fully covered at no cost to me. Granted, it is rare for those items to fail at such low mileage but they do fail. And Suburbans are a lot cheaper to fix than MBs.