Hypertech 730119 Speedometer Calibrator Wheel Locks is that they never really

is that they never really fit any one vehicle very well

(4) Sierra 18-3369 Stainless Steel Bolts

and professionals looking to enhance their vehicle's performance

Weighs just 3

facilitating an easy

Hypertech 730119 Speedometer Calibrator Wheel Locks is that they never reallyWhen installing tires that are larger or smaller than original equipment tires, and or installing a ring and pinion gear set with a different rear gear ratio, the Speedometer Calibrator allows you to correct speedometer readings. The vehicles computer calculates your vehicles speed based on the diameter of the stock tires. If youve installed taller or shorter tires, or changed the rear gear ratio, the vehicles computer doesnt know how fast your