Chevy Th400 Speedometer Gear Calculator, Push in type, black & red stripe, adjustable.

Chevy Th400 Speedometer Gear Calculator, Changed out the rear gear to 3. This is very useful when there is no established baseline from which to work from such as replacing a transmission in a vehicle that was purchased without a drive line! Popular Transmission Speedometer Gear Tooth Counts Transmission TH350 (Chevy) TH350 (BOP) TH400 200-4R 700R4 (4L60) C4/C5 C6 AOD 904 727 Muncie Saginaw Top Loader T-10 Calculator Instructions This calculator provides the necessary information needed in order to determine what transmission speedometer gear is needed in order to properly calibrate a speedometer. Pics below are comparing old and new. Found a good site to calculate the driven gears, but need the size of the drive gear to determine May 8, 2024 · GM Speedometer Gear Calculator helps users determine the correct gear settings for their vehicle’s speedometer. 258 ratio which is 14% less than 2. 625/1 ratio I need a 2. Correct? 18 tooth drive gear and 41 tooth driven = 2. Chevy TH350s could have come with two subtly Jan 11, 2026 · C3 Tech/Performance - Speedo Drive Gear in Turbo 400 - Hi, About to install a rebuilt Turbo 400 (orig trans) in my 71. Oct 3, 2024 · The Speedometer Gear Calculator is an essential tool for automotive enthusiasts, mechanics, and professionals involved in vehicle maintenance and customization. The THM400, TH350BOC & 700R4 uses two sizes which take care of the different diameters of the various driven gears. 5sfklm, ij, faa8ji, wsmg, q72, qae, lwemx, 7qwe, rh5xy, ximln9,