Per my 1967 Plymouth service manual:
Tighten to 90 inch pounds while rotating the wheel.
Position nut lock on nut with a pair of slots in line with the cotter pin hole.
Back off adjusting nut lock assembly one slot and install cotter pin.
The resulting adjustment should be zero (No preload) to .003" end play.
Those are Ma Mopars own words....page 22-6 in case you wanna follow along.
Good luck.