Description
1965 1970 Biscayne Extreme+ Brake System Rear 4302420GB speedometers and parts Corrects speedometer for tire upgrades Year Make Model Submodel masks 6CK19TZZAA CRN Corrects speedometer for tire upgrades between 25 40*Speedometer recalibration for gear axle swapsTPMS OptionsReads and clears diagnostic trouble codesDigital Battery Voltage DisplayReal time Data LoggingReal Time Data MonitoringUpgradeable to Flashpaq Tuning ** *Features and options may vary based on year 8L L6 1979 1980 GMC C3500 292 4