so im working on my budjet lift for my 89 xj, Ive heard that v8 zj coil springs will add a little lift but i was curious how much, i just picked up an extra set of leafs and was gonna add just the main leaf to my pack which as far as ive read should give me about 2 inches. will the zj springs give me about that, or should i plan on getting some spacers as well?