Miles: 47,788 Started hearing noise under the car, noise increases the more I accelerate and becomes very noticeable and annoying. Went to Nissan to diagnose, seems the transfer case oil has metal shavings and is the cause of the load noise. Nissan recommends to replace the transfer case and transmission as they usually will go together. The damage is internal and there is no external sign of damage and no oil leaks from both transmission and transfer case. I explained since the damage is internal and I had no hand in causing this damage it must be a manufacturer defect. Nissan replied that the warranty expired on July 2024 and will not be able to cover this damage and asked me to replace both transmission and transfer case for $15k.