full traction

A good friend of mine is selling his 2005 black Rubicon edition TJ wrangler with 110K miles, the 4.0L and 6 speed manual transmission. Has the Dana 44 axles with factory air lockers, 4.10 gears and 35" wheel/tire combo. Has the Full Traction 3-link 4" suspension kit, Nth Degree Mobility tummy tucker...

I just installed a rock crawler lift kit on my friends jk and I must say that the quality was solid. Made me want to upgrade but as I was searching the web I stumbled on to full traction suspension site. I tried to paste a link to the video on YouTube but my phone won't let me for some reason...