you really should be doing shocks and springs up front, with 125k miles on the stock suspension i assure you the springs and shocks are more than worn out, throwing old, beat up springs on new shocks will just kill the shocks in no time, especially if its with a spacer lift. a real lift will a little bit more but will ride way better on road, and last a lot longer as well. do it right the first time and you’ll save a lot of aggrovation later on.