Which alignment for a ZL1 on 1LE spec wheels/tires?
 

Im noticing a lot more wear on one rear tire than the other. Im thinking this is an alignment issue.

I have a ZL1 on ZL1 1LE wheels and tires. I have the street alignment for a stock ZL1, but I'm wondering if I should get the ZL1 1LE alignment since I have the same tire and wheel setup. Any thoughts on this for fixing the uneven wear?

Street or track days?
Where is the wear at? Across the entire tread or on the inner shoulder?

Street days. I do plan on tracking soon, but I would still like to know which alignment I need to set it to for both street and track. This is happening on my rear driver side tire. I'm seeing it wear more across the entire tread and a bit more on the inner shoulder.

Toe kills tires. Set your Toe at 0 Front and Rear.

Alignment is alignment and as you typed it up there one has nothign to do with the other. It's either aligned, or it's not. I suggest having it checked and specifically the Toe, as stated above, Toe is what wrecks tires.