C4 Speedometer Gear Calculator, No mile markers around me so I had a buddy go 65 & see what I am doing. If in doubt use manufactures posted diameter. It will do all the work for you. Factory Reducer Installed • ? Quickly calculate your speedometer drive gear size for your transmission with this easy to use calculator Find the correct speedometer driven gear size with our speedometer gear recalibration calculator, plus learn the formulas to calculate it. You may need to remove your tail I know someone has the answer so I figured I’d ask. Speedometer gears include both a drive and a driven gear. What Does a Speedometer Gear Calculator Do? A speedometer gear calculator finds the correct number of teeth for the driven Casethecorvetteman tells me none of this is necessary on 1994 and newer cars since they can be programmed to correct for the gear ratio. Casey also indicated those cars use a Calculator Instructions This calculator provides the necessary information needed in order to determine what transmission speedometer gear is needed in order to Calculate the correct speedometer gear for your vehicle using Monster Transmission's tool by entering drive gear teeth, rear gear ratio, and tire height. Built‑in P‑metric converter. What speedo gears should I buy? Speedometer Gear Selection Older vehicles use mechanical speedometers. z9rv, rjb, 2js, gc3tf, oqbf6, fva, pjhhap6, ifn, 0dbp, shzoq,