Nothing major but bought a spare air line kit for my air shocks so I can run seperate lines for each shock. Me and my dad are both running the same setup and we were both experiencing some issues with the rear end feeling like it was shaking at speeds between 60-70ish. My brother is running the same setup as well but belltech and normal drop shocks, which is what led me to believe the shocks are causing the issue (pinion angle came across my mind, but this didn't seem to be like that, more of a shake not vibration).
After a couple weeks of constant research a know real solution (nobody running a similar or same setup seemed to have any issues like this). I finally came across some info that led me to believe that the shocks being tied to together wasn't allowing either one to dampen correctly. My dad we went and bought a new line kit to test my theory on his and just got news this morning that it seemed to cure the issue. So hopefully I will get this accomplished before the end of the weekend and hopefully I will have the same result.