well, i have coilovers and i was looking at them after they were installed and i was wondering why the rear was too short. to my knowledge, coilover sleeves are made like that. I asked a lot of people the same question and they have provided me with pictures that in coilover sleeves, when the car is raised, the springs will not sit in place like lowering springs, but will drop down from the strut cup on to the perch because they are short. Perhaps they are made that way because of the adjustability issues. My point is, a lot of peoples coilover sleeves are like that.