[74Grandville]

I still don't think you are loading it enough. the way i do it is holding the pinion yoke with a glove and turn the carrier with a wrench. the most inportant pattern is on the drive side with new gears. with used gears you still want to look at driveside, but coast side will give you better information.

backlash should be 6-12 with 5 cut gears. 3 cut gears will be on the lower side 2-6? Pinion torque should be around 25 inch pounds rotating with new bearings. with used bearings around 10-15 inch. it's better to have to have a little to much preload then not enough.

you can't get a good pattern reading unless backlash and nut preload are set correctly.