GM Speedometer Calibrator 17-19 2500/3500 Gas Models Rough Country Drivetrain & Differentials - Pinion Components 2011-2018 Chevrolet Silverado 3500 HD

2011-2018 Chevrolet Silverado 3500 HD GAS 2 Door Standard Cab Pickup

Complete your MSD ignition system with a precision adjustable timing pointer that is CNC-machined from 6061-T6 billet aluminum

1/8 NPT port included for nitrous pick up or fuel pressure gauge

1997-1998 Dodge RAM 1500 Sport Fleetside 78

GM Speedometer Calibrator 17-19 2500/3500 Gas Models Rough Country Drivetrain & Differentials - Pinion Components 2011-2018 Chevrolet Silverado 3500 HDPut the finishing touch on your lifted vehicle with Rough Country's Speedometer Calibration Device! This easy to use Speedometer Calibrator helps you quickly and easily reprogram your vehicle's speedometer to match the output of your larger tires. Your vehicle's computer is designed to track the speed based on your stock tire height. When upgrading to larger tires, there will be a discrepancy between your actual speed and the readout on your