Let me try that again, not sure why it sent early.
The bushings aren't a "like OEM poly", but rather, they are OEM rubber. JKS literally installs factory rubber bushings. For a dedicated trail rig or Jeep that sees extensive severe trail use, the rubber could be a weakness. They will be quieter, longer living and provide better impact isolation than a lot of the cheap poly bushings found in the aftermarket.
My mind is early-morning-fuzzy right now, but is it a heim-joint that would be replace the bushings for severe use? Typically rebuildable, greaseable, and, more flexible than bushings, but noisier and lacking in impact isolation, less comfortable on a daily driven occasional weekend warrior...
I installed JKS adjustable front track bars on both of our 08's (along with a Bilstein 5100 steering stabilizer, this cured our death wobble), and was very happy with the product. That they aren't JUST made in America, but are based not too far from The Black Hills (near where I grew up), gives me warm fuzzies, so I maybe I have a bias. I am considering their J-Spec 2" lift for my wife's '13 JKU...
