Which notch kit do I need
 

I have a 97 Blazer 4 door (2 wheel drive) LT.

The Blazer has been lowered since I bought it new in 97, I was just very careful going over speed bumps or large dips.
Now I am sort of redoing everything and making the car ready for my 16 year old daughter.

I want to notch the frame, and need to know which notch to actually buy. Do I have a crooked frame or straight frame?
I recall seeing a couple of different designs and one specific to (not sure which gen) Blazers.

Anyone have a hint for me so I can order them up today?

Thanks!