I'm new to this forum, but not GM. A fellow poster from another site often recommends this site, and since I'm partial to the GMT400's, I figure I might have something to add, and other things to learn. My current ride is a '99 GMC 2500 Suburban with the 7.4L, Autotrak II named Sanity. I am slowly building her into an overland rig for my retirement years. Which is less than 3 years away, so it's crunch time!