im getting the koni threaded perch kit, and it looks like this.


i'll be using a 8 inch eibach spring with a 2.25 ID. my question is, do i use that upper spring perch? i'm not sure how it would sit...or do i run a spacer like the ground control's?


......or do i just sit them against the top hat?

also, ground control uses a 2.5 ID spring, and it sits with the oem top hat, can a 2.25ID spring sit with the oem top hat or am i better off going with a 2.5 ID spring.