teraflex leveling kit springs or pucks/spacers
If you are going to add a bumper or winch to the front then Definately get the springs. I have a 2 1/2" spacer up front and a 2" in back with 33"'s. I go mild rock crawling and think it works just fine.
I did the TF leveling kit and the new discos wore out in 6 or 8 months. I spoke to TF at EJS in the vendor booth and they said to expect 18 months out of them under normal use. The spacers are good, but it's not a long term solution for disco replacements. Get some with servicable joints. I moved up to a 2.5 Rock Krawler kit with new adjustable disconnetcs since then, so you may end up doing it again.
RK


