If I remember correctly, if you had LSD and jacked the truck up, when you turn one wheel the other should turn also. I supposedly have LSD on mine, and when I did this yesterday, the other wheel didnt turn. It actually turned backwards for about 1/4 turn then stopped.

Have I been taken by AAM/DC, or is this the way these LSD's work.

John

PS. The other day when I was backing up over a curb, both of my back wheels spun in the dirt.

 

That means that is working correctly. The AAM rear locker does not work the same as other lockers. If you to get it to lockup when moving you need to put on breaks slightly for it to operate.