[Joey D]

Originally Posted by Blackbirdws6

I can't help you much on the brake questions as you will need to rely on the various parties to determine if their parts will bolt up. That will be tricky but hopefully it will all work out in the end.

Gearing: Determine your RPM at normal cruising speed and determine which gearset works better for you. Also determine if for that gearing, what MPH that puts you at in the 1/4 mile to give you enough room for your goals. In hindsight for my build, I would have gone with a 3.54 (lowest offered for S60) to give me some headroom.

Studs: See if they can offer axles with larger studs (screw-in or press-in, I prefer screw-in). 1/2" should work fine with your factory wheels. It's best to make this decision now vs having to pull axles and have them drilled to accommodate larger studs. My axles came with the smaller 12mm but had provisions for the larger 1/2". If you put a sticky tire on your car, it will be good assurance you don't bend or break the smaller units. Ask me how I know.

Other: I assume the cover has a fill hole?

How do you know?