New true-trac differential whine

Pinion Depth
Pull it out and check the pinion depth.

Get a picture of the wear pattern on the ring gear with the yellow marking grease.

Don't want them running near the toe or the heal of the ring gear.

Screenshot_20220629-080146_Gallery.jpg

Have to find out if they used the crushed sleeve eliminator kit. If it is a crush sleeve and they crushed it too deep, time for a redo. If it is eliminator sleeve just add another shim or take one out as needed.

Good Luck