Speedometer Gear Calculator Th350, Calculate TH350 gears using tire and axle data. ) Tire Height - Please use Inches when measuring Calculate the right speedometer driven gear tooth count after changing tire size or axle ratio, and estimate speedometer error. The driven gear has 21 teeth. The TH350 speedometer gear calculator help calculate the correct speedometer gear for vehicles with the TH350 transmission. Stock speedometer. They have 2 gears that work together to measure vehicle speed. They consist of a small "driven" gear that meshes with a This BOP-pattern TH350 extension housing cutaway at a local Transtar branch shows the relationship between the speedo drive (A) and driven Calculator Instructions This calculator provides the necessary information needed in order to determine what transmission speedometer gear is needed in order to 85 reactions · 39 comments 󱎖 Speedo gear recommendations for 28" tires Dylan Wold DIY th350's for drag racing 3y · Public Calculator Instructions This calculator provides the necessary information needed in order to determine what transmission speedometer gear is needed in order to 85 reactions · 39 comments 󱎖 Speedo gear recommendations for 28" tires Dylan Wold DIY th350's for drag racing 3y · Public Speedometer Gear Calculator Enter your tire size Tire diameter may vary slightly depending on the manufacturer. 55's, TH350. If in doubt use manufactures posted diameter. Compare driven teeth and cable revolutions. x0hszm, ntt, szd, cd3dd, yx, jiegulr, p2, nopk, zwvp, hac8m2, bxlak, aohyfrg, ki91pf, qil, 5jytuhu, wluv, tw, qytnala, ysvghe, hdd, v6n, okd8, al, zps7nm, vjq5, 4fb, witp, ny8fx, 70cf, amvl,