I realize jeep TJs ride rough, but was reading about how the rancho 5000x shock really helps to smooth out the ride both on and off road. My TJ currently has kyb gas-a-just shocks from previous owner and I have no idea how old. Currently running 31 inch tires with no lift. Assuming the kyb gas-a-just are relatively new, would there be much difference in ride and handling with the rancho 5000x?