This post was kind of a mess because I updated it over a few weeks as I finished the lift so I'm going to clean it up a little. I received this Envoy from my father who is gone now so it has a lot of sentimental value.
The lift Includes: Rough Country Kit, Bilstein 24-103336 shocks, Moog 81114/81069 Springs, UCA flip/swap, G80 8.6 axle (3.73s), and 265/70/17 General Grabber ATs. For those that read this that don't know, those springs add 1" front and 1.5 in the back. I got it aligned this evening, and went on an extended test drive. The ride quality and road manners are great; I was really happy with the result. Now, I need to take it on some easy trails to try it out. My next steps include rear shocks, adjustable panhard rod, deciding on a body lift, larger tires/gears, and/or SAS. I'll be looking at an off road bumper and skid plates next spring/summer.
I also put the Rough Country kit in my '09 75,000 mile Envoy SLT with the stock springs and shocks 265/60/18s. It is perfect for a stock looking/running build...nothing else needed, and it rides great. I'll post that one later.
I added the pics of the '03 lifted plus my dad's first off road adventure in it....lol
I think I'm probably going to remove the 3/4 spacer out of the back and replace with a 1/2 spacer I found, but I'm waiting to see how much it settles first.