For those that are wondering...
For use with tire size:
http://www.4lo.com/calc/gearratio.php
Just for drivetrain:
http://www.crawlpedia.com/crawl_ratio_calculator.htm
Or:
http://www.novak-adapt.com/
For use with tire size:
http://www.4lo.com/calc/gearratio.php
Just for drivetrain:
http://www.crawlpedia.com/crawl_ratio_calculator.htm
Or:
http://www.novak-adapt.com/