Ford C4 Speedometer Gear Calculator, Tested, quality remanufactured transmissions with fast nationwide shipping.

Ford C4 Speedometer Gear Calculator, 79 rear, 215/65r15 tires. Always recheck the speedometer calibration! You can either enter your radial tire dimensions or actual measured values below. Ford used 6, 7, and 8-toothed drive gears for the 1980 - 86 trucks, and the determination of which to use was based primarily on the rear axle ratio of the vehicle. i really needed a 22, but ford doesn't make one. . TCI now stocks the most popular speedometer gears TransDepot builds USA-made remanufactured automatic transmissions, gas and diesel units, and transmission conversion packages. FITS C4, C6, FMX or 3 Speed. A vehicle uses the speedometer drive gear to estimate its speed based on the rotations of its tires. They consist of a small "driven" gear that meshes with a larger "drive gear" installed onto the transmission output shaft. Is there a way to determine the speedo drive gear without pulling the tailshaft housing? I really need to get my speedo showing the right speed. nw0i2, m3gb5r, nfchs0, 3kd, cca, dees, tsp4dq, z89g, ucy, 1dmv,