you can contact the company fastlane, they quoted a guy $1,800 to do it, and the DIC won't work...
http://www.gmfullsize.com/forum/showthread.php?t=216874
1. This is NOT a direct plug-in swap cluster.
2. You have chop into the cluster wire harness to make work.
3. You have to modify the bezel around cluster to make look right, it does not fit.
4. It took them 2+ weeks to make work, but they do know what to do now.
5. Everything works, but the "Info" window will not display anything.
Give him a call if you have you heart set on it.
713-600-8600 ask for Nick