8 3/4 carrier bearing preload

all i can find is
"i tighten the carrier adjusters as tight as i can with a 12" tool, and have never seen a bearing fail due to too much preload"

to me, that is the wrong answer and i will not accept it.....
there must be a spec or something.....

being a ford guy, with a 9", at least i can "with the weight of the carrier/ring gear against the pinion (turned sideways so the driver's side carrier bearing is up), adjust the driver's side adjuster until it is snug against the bearing race. then, tighten the passenger side until it is snug. tighten the passenger side until .020" spread is achieved. check backlash. if correct, you're done. if not, loosen slightly one side, and tighten the other in the same amount until proper backlash @ .020" case-spread is achieved"

is there nothing like this for a 8 3/4????

me being me, i HAVE to have more technical info that what i have found.....will not proceed otherwise

is there not a shop manual or something for this??????????