A MUST have for anyone running tire sizes different than stock. Our speedometer calibration modules allow for accurate speedometer readout on the dash no matter how large your tires are. We send these out pre-programmed for your specific tire size. Should you change tire sizes at a later date, please contact us and we will work out re-programming your module.
These install in five minutes and require no special tools or equipment. Save yourself the stress of a speeding ticket and enjoy the peace of mind knowing that your speedometer is accurate no matter what size of tire you are running.
Please let us know your tire size, year of van, and whether it is a 2500 or 3500 when you contact us! We will need this info to get your module pre-programed.