Lowering it will make it harsher. One of the hazards of the nicer look. The new springs won't travel nearly as much. Heck, if you got a set of new oem springs, they would seem harsher as well just because they have had decades of bouncing on them.
Did you get lower profile tires?
How about the rear control arms? Did you get new bushings there? The urethane ones will transmit more road harshness as well.
Did you get lower profile tires?
How about the rear control arms? Did you get new bushings there? The urethane ones will transmit more road harshness as well.