I see. That is lame take out the front spacer and leave the longer rear shackles. They are the same, I had this same question some time ago. As it turns out, the slight extra lift comes form using the the stock spring cup. You do not have to use it on the either lift. In the Teraflex instructions, they tell you if you use it, the lift will be 1 3/4in and 2in if you do use the cup. Order Daystar's lift, i would imagine that it would be quite cheaper.