Loud click noise from rear, when shifting park to reverse or drive in auto 370Z

Element600ee

my g35 had to be done twice in 60k .. once on each side . but i did them both both times . the second time i used anti seize instead of grease . i was told this would fix it once and for all . the other thread i posted is supposedly a perm fix also by using a diff nut on the axle . i cant vouch for that but it makes sense .