OK, according to the D60 bible materials on Pirate, the inner spindle nut (the one that preloads the bearings) should be brought up to 50 lb-ft then backed off 1/4 turn. After installing the funky locking washer, the outer nut is torqued to 50-70 lb-ft. That nut does NOT get backed off 1/4 turn like he inner one, just torque it up and leave it there.
How do the U-joints look on that thing? I mean the big ones inside the knuckles, are they any good? Now would be a good time to replace them, if they're so-so and the customer is reluctant to go for it explain to them that when the U-joints do let go to get to them the whole mess you're working on now will have to be disassembled again (sans splitting the rotors from the wheel hubs). And that they will pay for said disassembly once again. Cause, you know, that counts for at least 1/4 of the time the labor guide gives for the job.
Inner lock nut is 50 ft-lb while rotating disc to seat the bearing, back off, tighten to 38 ft-lb, then back off 90 degrees. Outer lock nut is 160-200 ft-lb.