I just had my wheels balanced and had the metal valves installed as I had one of the P O S the factory installed pop on me this summer during a camping trip.
I was going to have it aligned but the tech pointed out the tires were wearing evenly and it does not pull or drift so why fix what is not broken.
Sounds ok by me, no problems with 38.000 on it.
Any thoughts?

 

I agree with your tech. As long as everything is in proper working order don't mess with it.

 

Do you have the Trac-Rite (posi) rear?

 

I have the anti-spin, Same thing?

 

Yeah - same thing.

Your rear tires aren't wearing much faster than your front ones?

 

Actually they are.
I had two brand new spares for my Alaska trip and used those in the rotation and the two rear are now my spares.
The fronts were worn very little.
Is this a result of LS differential?

 

For sure - the Torsen differentials in the AAMs are more aggressive than the clutch packs in the Dana rears, so they wear the rear tires much faster.