Upgrade to the one listed on cjc offroad’s website, I believe it’s an improvement to stock
I put in, had put in greasable ones I got from NAPA, don't remember what brand they were. I have the paperwork some place but am currently packing and moving stuff. So far, I love them. Grab, shake, grease,,, good to go. The lockable grease gun tip helps a lot when greasing them..