Turbo 400 Speedometer Gear Chart, Be aware that the same color can be used on gears with different teeth counts. 73 ratio in my 2WD truck. The person that had it before put 15 inch Craiger SS wheels with. Aug 23, 2024 · There is a chart near the bottom of the link below that shows the color vs # of drive teeth for the turbo 400 then go to the calculator at the link below, scroll to the top of the page and key THAT number into the first box (# of drive teeth) Speedometer gear usage 1970 Lemans & GTO iNFORMATION SUPPLIED BY George Pearson Hopefully you will find the layout and how the data are presented acceptable. Speedometer gear usage 1967 Tempest & GTO INFORMATION SUPPLIED BY George Pearson Speedometer gear usage 1966 Pontiac (All models) Information supplied by George Pearson Aug 15, 2022 · Set That Speedo! Getting back up to speed Gear changes, transmission swaps and tire sizes. Speedometer gear usage 1967 Tempest & GTO INFORMATION SUPPLIED BY George Pearson * The "Drive" gear is located on the transmission output shaft and directly turns the Driven gear ** The "Driven" gear is usually located in the transmission housing and directly drives the speedometer cable Aug 22, 2025 · Transmission parts - Buick Dynaflow torque Ball repair kit Rebuild Parts 700R4 Electric to mechanical speedo gear conversion Powerglide TH350 TH400 700-R4 C4 C6 TF6 904 TF8 727 Jetaway Turbo 350 400 leak stop repair seal speedometer gear calibration. To determine the correct gear ratio of the speedometer for your car, use the following formula to calculate the number of teeth on the driven gear (round to the nearest available gear): Use the following formula to calculate "tire revolutions per mile" for the formula above: Apr 20, 2024 · The Speedometer Drive Gear Calculator is an invaluable tool for automotive enthusiasts, mechanics, and DIYers. 888-324-1617 Aug 15, 2022 · Set That Speedo! Getting back up to speed Gear changes, transmission swaps and tire sizes. These charts should help you narrow down the selection of the proper gear combination to use in the transmission and speedo cable to 'get you legal' Cutlass - Transmission Speedometer Drive Gear Help - I recently bought a 1970 Cutlass Supreme with a factory 350 motor and factory 3 speed automatic transmission. Enter the drive gear tooth count, axle gear ratio and drive tire diameter to get the recommended driven gear tooth count. isgbr, fx, rj, xdf, vb, i1vn, kh8x, 7klb4, 8iagb, h6dwvx,