i know all coils sag, they also have different ride qualities. i've run eibachs on my 91 explorer and my 94 ranger and they performed well in both out in the desert. not really a fan of spacers and coils aren't really that expensive. dropping the rear isn't really an option cuz it doesn't really fix the problem. i've had fabtech, pro comp, and eibach coils and so far the one i like most is the eibachs.klemmentine said:If you need a quick fix for sagging, why not add a small 1" spacer to your spring. (the ride will suck though)
You could always drop the back an inch to level it out with the front. If you have 4" lift blocks, swap them out for some 2 or 3" blocks. Blocks are inexpensive, and you can buy some new u-bolts while you're at it.