Yea i could guess you are right but that is 1.5" coil spacer and i dont want to run a body lift! 
The "Size" '' are all the same, The 1/2 inch is made up with shock strut spacers. Its funny how you say "I don't want to run a BL, 90% of people with trackers and kicks run BL's. There are not many "lift" options out there for IFS zuk's, Unless you want to but the Calmini 3" susp. But even than the guys that buy the Calmini 3" susp end up paying for the Calmini 3" BL.
It's not "un common" to run a BL on IFS zuk's, They are cheap and give you clearance. Search threw the "members rides" picture thread, You will see what i am talking about.
If you are planning on buying this
http://www.zuksoffroad.net/upskirt.htm , Think again, Like i said before, Its all the same stuff, But that guy is WAY OVER PRICED. Coil spacers and strut spacers are like $130 max.
Do what you want.