I dont think that they are exactly the same thing. It looks like in a 1/4 eliptical you don't have the regular leaf springs attached to the axle(like stock) they are hooked one eye to the axle and the other to the frame. on a buggy you have the leaves(like stock) mounted to the axle and then you would add a half of a main eye spring (so that you only have one eye) to the frame(using bolts) and then the shackle goes from the "buggy spring" to the axle leaf pack? don't know if that makes sense or not? Good article though. thanks.
90 yj 7" lift,35x12.5 mtr's,warn9000xd,atlas 2 4.3:1 t-case,4.11,kick a$$ stereo system, soon to have a buggy system front ??rear?? and an SRS