Got Camber/Alignment Issues?

Plus one for Kristina. I'm sure all know she is quick to respond and a great individual. Thanks for everything you do kris.

Btw I have this on my truck at 4.25/7 drop
 
Should I need these with only a 2/3 drop? For some reason the alignment shop can't get my camber back in spec. The worst side has -3* of camber and they supposedly can't adjust it any further. Should I maybe have a Chevy dealer check it out first?
 
OK. I'm planning on taking it to the dealer since they are the only other place locally. I'll make sure to get an alignment sheet from them. I'll see if I can find the one from the other shop.
 
You shouldn't need camber bushings or plates. I would take to another alignment shop. Post the alignment sheet if you can.
I dug through everything the shop gave me and couldn't find an alignment sheet. I know the severity of the camber because they took me into the shop and showed me the specs on the alignment rack. Two different techs couldn't get it set. What are the odds of something being worn out in the front causing the alignment issues? The truck is 4wd and has 107,xxx miles on it.