Leo B Posted January 20, 2022 Report Share Posted January 20, 2022 (edited) Hi, I need to buy new Speedometer Pinion. I had 19 teeth but not sure is it correct. How to know what is my R2 Axel Ratio? I dont have plate which shows that. SI dont have 19 teeth, only 18 and 21. 19 teeth is for 3.73 Edited January 20, 2022 by Leo B Link to comment Share on other sites More sharing options...
John C Posted January 21, 2022 Report Share Posted January 21, 2022 Hello Leo, Search for Strange engineering gear ratio calculator, they have a calculator to do this. Plug in your tire diameter, RPM, and speed with a final drive of 1:1 (no overdrive) and it will calculate it. It's very accurate. Good luck with it! John C. Link to comment Share on other sites More sharing options...
Leo B Posted January 21, 2022 Author Report Share Posted January 21, 2022 Hi John C, Thanks!👍 I didnt think clearly. Im restorig my R2 and now it is without driveshaft. Ofcourse easy to check Axel Ratio. http://www.how-to-build-hotrods.com/gear-ratio.html Link to comment Share on other sites More sharing options...
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