Sounds like youre in the ballpark but theoretically, there sould be no noise. The measurement to be taken when you get the pinion sinched down is to verify the turning torque. Some guys can do it by feel but thats after doing A LOT of diffs. To do it right, you need an inch pound torque wrench. New bearings should be between 25-40 in. lbs, used bearings are usually 20 in. lbs. If you rotate it back and forth the yoke should have a good amount of resistance. Pinion nut torque is like 220 ft lbs.