JOKE! They are so poorly made that cheap air lines will not hold air and fittings and o-rings will come out of the plastic nuts when we try to add air. I hit 90 pounds of air and then the o-rings blew. Blow that one out, add air again, and then another o-ring will blow off. The shocks themselves might be fine (if you can ever get the lines to hold air), but MONROE decided to build them cheap and leave everything up to the buyer. plastic fittings. I mean, the nuts are plastic, the tee is allβ¦