I recently lowered my Z on Tein springs..it's literaly 2inches off the ground..after I put them on I purchased an eiback alignment kit (picture below) and took it to JUST Tires to get an alignment. I was told that thats all I need. Yesterday I took off my rear wheel because I got a flat and noticed that the inside of the tire is completely gone. Why did this happen and how can I fix it? Please help, Thanks

 

not descriptive enough. but from what I can make out, you lowered it prior to getting an alignment.. meaning after you lowered it, your toe and camber went out of spec causing uneven wear on your tires.

solution? redo an alignment and get new tires. your alignment can go out of spec from hitting a big pot hole.

 

There are a lot of potholes here in Chicago..but can it have gone so much out of spec to completely shave the inner wall of my tires in 7 months?

 

Yes. If you were toed in enough, your ish could get effed reaaaaalllly quick