i actually called about this when i first got my truck, if whatever your going in for to get covered under warranty for could have caused the problem then thats not covered…
and i def can vouch for this being true, cuz when my first RearEnd went i had Air Ride on the truck & it was 7 different colors and at first they denied the work to be covered cuz of the AirRide, but then the mechanic pointed out that the only thing not broken in the rear end was pinion and if the rear end blew due to it having Air Ride then the pinion bearings and seal would be shot