Fits Chevy/GMC 2500HD (17-19) Speedometer Calibrator Inline Diesel 90005_A ext-cab 3 V8 1969 - 1970

3 V8 1969 - 1970 Chevrolet El Camino Base 396/6

6L V8 1969 Chevrolet Kingswood Estate 427/7

5 Muffler Outlet Diameter (in) 2

4 V8 1963 - 1967 Chevrolet Impala 283/4

Color : Stainless Material/Finish : Stainless Steel Item comes in a Poly Bag packaging

Fits Chevy/GMC 2500HD (17-19) Speedometer Calibrator Inline Diesel 90005_A ext-cab 3 V8 1969 - 1970Speedo Calibrator Inline Diesel Chevy GMC 2500HD 3500HD (17 19) Put 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