If you are buying it for the LSD don't. Most of us are looking into swapping it out for 3.46 with a 40% locker. Factory Five speed M3 is a 3.15 with a 20% locker. Auto M's are 3.23 with 20 as well. If you want stock gearing you can buy them for around 300-500 with stock gears and LSD. And that will bolt into any E36 but a TI