[wrench87]

these are directions for the chrysler corporate axle case bearing preload and backlash adjustment it may give you some ideas.
start with case in place and bearing caps finger tight
remove all case bearing end play while maintaining a back lash of 0.010"
measure backlash at four places with a dial indicator and mark point of minimum backlash
(take backlash readings at this mark)
loosen right side adjuster and tighten left side adjuster to reduce backlash to 0.003"-0.004" while maintaining 10 ft lbs tourque on each adjuster
tourqued bearing caps to 70 ft lbs
tighten right side adjuster to 75 foot pounds (this should increase the 0.003-0.004 above up to .005-.008)
retourque right side adjuster while seating bearings until tourque remains at a constant 75 ft lbs
measure backlash to insure is .005-.008" (if not)
adjust tourque on right side adjuster until back lash is between .005-.008"
measure left side tourque to insure minimum of 75 ft lbs.