Installing in Mark 1 right now. Do I need to take off IRS bracket (with the two big 15/16" nuts, 140-200 ft lb bolts that bolts to the spindle) that the top ball joint mounts to or can I just pull the cotter pin and take the castle nut off from the botton of the upper ball joint? Due to angle, looks like I can't get bottom large bolt (of the two noted above) out without taking off caliper, backing plate, rotor, etc. Don't want to do that if I don't have to. Also it doesn't look like the existing top shock mount will work, not enough room where A arm comes together at ball joint. Maybe I will have to drill a new hole for mounting the shock further in towards the center of the car to keep the coil from hitting/rubbing the new upper A arm. Anybody been there on either of these issues? Any hints?