Factory spec is 181ft/lb. The TSB calls for a 220ft/lb spec w/grease. However, a few thousand miles with a little bit of wheel spin and the nuts loosen back up again and cause the clicking. If you want it to stop and not come back, 280 ft/lb works with the updated axle nut and grease. This is a very common problem for the 00-01's, which none of you guys have. 220ft/lb w/ grease will work if you take it easy on the car. But after a few launches at an auto-x event, drag strip or just playing around on the street and the clicking comes back.