Lowering

I have a 98 Camaro Z28, and I want to lower it around 1 1/2". Would I have to change my shocks and springs, or just the springs?

i think its just the springs because im interested in doing the same on my 1995 z28, so i have a feeling its only the springs...

in terms of shocks and springs all you have to change is the springs. however, when you lower your car you should get a new panhard bar(preferably and adjustable one) and maybe even lower control arm brackets to change the angle of your rear control arms.