OK Guys
I'm missing something here...
Are you saying that the engineers, designers, & technicians that made the car that you & I drive, don't know what they are talking about?
I called, because I ran the 80 ft. lb.'s by our fastener/joint engineers at my work, yes we have those people. We calculated the stud size, thread pitch, nut engagement, material, and lastly, how it's used/clamp load. The calculations came up with 80 ft. lb.'s being too low. It seems that Nissan agrees.
Brian