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speedometer gear
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  1. Transmission and DriveLine Questions
    Need help to determine what driven speedometer gear I need. Did some changing on my 55 Chevy recently. Have a 235 cu.in. in front of a 3 spd manual, non-overdrive transmission with 3.36 rear differential. Tires are G78 15. Speedometer reads 10 mph slower than actual speed. What driven gear...
  2. Transmission and DriveLine Questions
    I recently replaced my stock Powerglide with a TH350 in my 57. It has the stock 3.36 gears and 205/75/14 Coker wide whites. Stock speedometer. Was wondering which speedometer plastic gears to use. Right now it's reading way too high, it came out of a 1980 Camaro and looks like either grey or...
  3. Transmission and DriveLine Questions
    I'm sure that this has been asked, but I must not be using the right keywords... When I roll down the road at 55 MPH (measured by GPS), my speedometer reads about 65 MPH. My speedo driven gear is 19 tooth and is white, I don't know how many teeth there are on the drive gear. The...
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