[Darrin Christen]

I have a friend that had the same problem with a 2005 tahoe. Speedo went out. I did some checking on Ebay and found a company that sells the parts to fix them. I forget what the actual name of the part is, but it cost me about $20.00 bucks and came with instructions on how to replace it. I did the repair and it has been working fine. I will see if I can find the info you need. The company will also do the repairs for you if you send them your instrument cluster.