Some people will tell you that by lowering with the torsion bars it wont mess with your camber enough to hurt anything.
Well, this is after 2 years in which 7 months of that the truck didn't drive. This was the worst but all 4 were wore way down on the inside. I say 4 because of rotating the tires.
Drop spindles aren't super cheap but tires are way more expensive lol. Get an allignment. This will prolong this kind of wear but wont get rid of it.