I'm not sure how much torque should be applied to the top nut of the strut. Right now I have about 50 ft. lbs. and it sounds as though its moving around inside the mount everytime I brake. It makes a clicking sound when ever I apply the brakes and it's getting annoying.

if i remember right, its somewhere around 15 or 20 ft-lbs. keep in mind that the shock never pulls down on the mount, it only pushes up.