Can you tell me what the torque settings are for the large center nut and how do you torque it down when the center shaft keeps spinning as you attempt to torque it? Also what is the torque settings for the four nuts that mount the strut. All of these nuts are under the hood area.
I can honestly say I've never torqued the center retaining nut. I simply tighten it with an air impact. If you do not have an impact available you'll have to get it snug using the flat areas at the top of the haft and hold it with a wrench, then use another wrench to turn the nut.
The spec on the main strut to mount nut is 76 lb-ft and the spec for the 4 strut mount to strut tower nuts is 26 lb-ft