8 3/4 gear set up help

Are you using the crush sleeve or the eliminator? When I set mine up I used the factory shim, set my backlash to .010 and the crush sleeve. I should have gone with the eliminator but didn't. Mine is perfect, no howl at all.

I have also heard/read that some gears are just noisier than others. I used the Motive gear set (3.55) as well and no issues.