Hi everyone, I recently purchased a 96 K3500 (4wd, 7.4L, automatic, dually) with ~110,000 miles. It has needed a bit of work, but overall is in good shape mechanically. Details of my current issue: Instrument Cluster - My speedometer and tachometer always read high (e.g. reads ~90mph instead of 70mph/ reads ~4000rpm instead of 2800rpm. - The speedometer and tachometer needles do not bounce or circle back and forth. - The odometer gauge works and is accurate. - The other gauges appear to work just fine. Other Details - My readings for the vehicle speed and engine speed are correct through the OBDII connector and reflect how the engine sounds. - Cruise control works. - Installed a new input speed sensor on the transmission, no change. - Installed a new output VSS on the transfer case, no change. - Replaced bad ABS module - Replaced bad front right wheel speed sensor I'm tempted to purchase a 99/00 120mph Escalade cluster, but I'm not convinced the current stepper motors are bad considering that the Speedo/Tach are both consistently high. It's certainly possible, but I want to get everyones opinion before I go buying more parts. What is the likely hood that both stepper motors would read high in correlated fashion if they were bad? It would make more sense if a signal to each was incorrect. With that said I don't know what part would generate a bad signal only for the Speedo/Tach and not other parts. Note: The tires and gears are stock, which makes sense as the my vehicle speed/engine speed readings on the OBDII appear to be correct. I appreciate any thoughts or opinions you folks might have. - Mike Edit: Also, it appears there is no speed sensor buffer for my year gas vehicle.