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Changing the truck’s tire size or rear axle gears? Chances are the speedometer reading is off, because many late-model trucks use the vehicle’s speed to also determine fuel delivery, shift points and more, TS Performance’s developed the ReSpeed speedometer calibrator and speed limiter removal unit.
Vehicle Fitment
The ReSPeed easily installs into a gas or diesel truck and by inputting every new tire size and/or rear axle gear ratio, the ReSpeed recalibrates and corrects the vehicle’s factory speedometer to fully optimize the engine’s performance. If the new tires have a higher speed rating, the ReSpeed can also alter that vehicle’s speed limiter by turning it off or allowing it to set a maximum speed to take advantage of each truck’s performance.