| Message | The kits used to just run O-rings, but at some point they introduced poly sleeves in addition to the O-ring (front only). I'm not sure why/when the change was made. But I picked up a set used, after speaking with GC, I was sent the sleeves for the front and told to use larger O-rings in rear. If you go to jsworks.org and scroll down to the suspension post you can see a pic of the sleeves and how they install. 
90 Twin Turbo Track Build - jsworks.org for more info!
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