|
This is what I understand and please feel free to correct it if you know better.
When the pinion and ring gear are installed you set a pattern on those gears. While you are breaking them in the gear pattern wears in and gives you that nice shining pattern that you see on the gears. That metal that comes off while the pattern is wearing in suspends in the oil and after X miles and the pattern is set you need to get that metal suspended in the oil out of there.
|