What Series????
kyle
A 2 series carrier is a car that came with 3.08s or lower from the factory (i.e. all of your 2.73 cars). A 3 series carrier is a car that came with 3.23s or higher. This is very important when you order new gears, as they will differ from 2 to 3 series carrier!
kyle
If your car is an M6, then you automatically have a 3-series carrier since they all came with 3.42 gears.

