8 3/4 axle end play question ??

1969383S : Install the driver side first and fully seated and torqued to spec, then the Passenger side and adjust the end play accordingly!
This is exactly the procedure I am following. The factory service manual says the same thing. I agree:)
I have never had an 8 3/4 issue like this in 40 yrs. I appreciate the input from the members here,....I'm starting to lose my mind on this...lol
HotRod20