Sure Grip Advice

I put in the sure-grip 3.23 and went for a ride. There is no whining or humming, it goes 70 mph @ 3100. Glad I made the change. The 3.55 was very tight, almost no backlash. I moved the carrier one notch on the adjusters. I checked the gear mesh and it seems fine. Tomorrow I'll check the carrier bearings, see if I can see anything wrong with them.