Toyota Avalon 2012 Automatic Gasoline Peace, mercy, and blessings of God be upon you. I have a very clean Avalon gearbox, original factory part. It is still installed in the car, I haven't removed it yet. For anyone who wants to test it, the gearbox is guaranteed. I will take responsibility for anything if something is found. I have taken good care of it, changing its oil every 50,000 km. Praise be to God, there are no issues with it.