OD trans into 2nd Gen

[Lou6t4gto]

Where can I find aformula for gears

Where is there a Chart/formula for finding what "Speedometer Gears" are needed (Both drive and Driven-color/number of teeth) for a 2.73 geared rear end with 25.5" tall tires ? and where can they be had ? Thanks

 

[Lobsterbak]

Where is there a Chart/formula for finding what "Speedometer Gears" are needed (Both drive and Driven-color/number of teeth) for a 2.73 geared rear end with 25.5" tall tires ? and where can they be had ? Thanks

http://www.tciauto.com/tc/speedometer-gear-calculator/
http://www.wallaceracing.com/speedo-calculator.php
http://www.transmissioncenter.net/speedometer_calibration_______va.htm