Rough Country Speedometer Calibrator - 90005_A Steering Arm or taller are prone to

or taller are prone to driveshaft damage at full suspension droop

Moisture Breather Technology Reduces Moisture Light Lens

Rolled reinforced edges for added strength

Compatible with most fenders

Rough Country Speedometer Calibrator - 90005_A Steering Arm or taller are prone toPut 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 vehicles 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 speedometer.