everyone sems to have this almost nailed, but Shawn has it down perfectly. for whatever reason it is, GM put the perf. shift indicator in the DIC in 97, then switched to the Instrument cluster in 98 and back to the DIC for all other years. however, GM being the way they are, if you have a GT with the digital DIC, you'll also have the perf shift in the DIC, just not able to be hooked up, since they are the same part number for dig. DIC in GTs and GTPs. I bet that the Instrument panel is the same for all GPs also, I know it was on my 97 and my 98, as well as all of my friends' GPs too. hope that helps.