Someone may have put this up here before, but it is the first time I have run across it. I found it by accident while I was trying to figure out how a 2005 Roadtrek on ebay was equipped originally because it shows a full floating rear axle in the pix on ebay.
https://www.gmheritagecenter.com/gm-...tion-kits.html
It looks like the pdfs for the vans have a lot of the service manual information but without the procedure, and they list a lot more of the applications and parts. Pretty interesting.
Late 1990s and most of the 2000's so quite a few years.