[guruerror]

You're right, the Cognito kit corrects the ride after installing keys and cranking the bars. I forgot that I already had the Truxxx keys before I got the Cognito kit. It also improves the suspensions geometry and gives you more down-travel. Truxxx and the GM Green keys are the same if I remember correctly, so either will work fine.

I think your on the right track: keys, Cognito UCA kit w/Bilsteins, and rear spring spacers. That will get you leveled, lifted and ready for 37s without sacrificing ride quality.