i have a set of heavy duty cargo coils in the rear of my 86.i run tall tires in the rear and always liked the look anyways.when i put the ford 9 inch in the rear i also bought a kit that bolts to the lower spring mount to gain a little additional height.recently i raised the front a bit(i know most of you dont like this)by putting twist in spacers in the front springs.the front came up to where i wanted it too but the back came down a bit to the point where the top 2 or 3 coils laying right on each other.i dont want to run airshocks or bags to get the rear up again.i see jc whitney sells lift springs for this application and they claim 2-3 inches.they also make them for the front or rear.do you think i should give them a try?has anyone ever done this before?