Rough Country 90045 Speedometer Calibrator | Chevy/GMC 1500/2500HD 2WD/4WD Model_General 4 1000 Premium Fabricated Rear Blocks: Tougher than

Fabricated Rear Blocks: Tougher than cast alternatives

This easy-to-use Speedometer Calibrator helps you quickly and easily reprogram your vehicleΓÇÖs speedometer to match the output of your larger tires

reliable installation

Conquer every terrain with confidence with Rough Country's 3

If you’re looking for an eye-catching upgrade that’s also practical

Rough Country 90045 Speedometer Calibrator | Chevy/GMC 1500/2500HD 2WD/4WD Model_General 4 1000 Premium Fabricated Rear Blocks: Tougher thanPut the finishing touch on your lifted vehicle with Rough Countrys Speedometer Calibration Device! This easy to use Speedometer Calibrator helps you quickly and easily reprogram your vehicles 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