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plastic speedometer gear

  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...
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