From the content and time of your reply, it is certain you were referring to my previous post. It is possible there is something out of whack in my housing that made gears more prone to whining, even with proper adjustment. The rear end shop tried readjusting the gears (which were originally installed by another well known gear shop), but the whine persisted. Those gears were brand new set from a well known NA supplier (was NOT from Strange). This shop does nothing but rear ends; probably about 4 per day, so that's over 750 per year. The owner said the only gears that are always good come from a Japanese company, but they don't make gears for our cars. He said new NA made gears are hit and miss, and that gears from Strange are usually OK. He suggested putting in a set of OE Spicer gears he had sitting on his back shelf, and the whine went away. He didn't charge me for the Spicer gears.