I have never seen any torque specs on the old axles for the pre-load and final adjustment like is specified for modern wheel ends. The old books recommended a socket the size of the nut and then use a 12" T-handle and tighten it "wrench tight" to preload the bearings and then back it off a minimum of 1/8 of a turn until you can line up the lock nuts. Then install the lock nut. After you are done, it should turn freely with no bearing rumbling feeling. This is the chart we use on our modern trucks.
http://www.meritorhvs.com/MeritorHVS_Documents/tp89159.pdfYou will note that they recommend considerably more torque than the old recommendations to stay within runout tolerances.
