All my problems were with used units. I never had any drivetrain problems with any new unit, car or rv. I put 200,000 miles on a few of those new vehicles.
As for rvs, talking to various mechanics, ext warranty companies have covered repairs but in some cases things got iffy on the 2nd repair of the same item. Some dealers have actually gone into their own pocket to make those repairs for good customers. When you buy from the dealer and he is allowed to make a profit, you offer him some wiggle room to help you.
