You can also use the below link to make your own gearing charts. Just put in the transmission ratio, spur and pinion and it will generate a chart showing the ratio for the info you input as well as a whole bunch of combinaions either side of your selection.
http://www.gearchart.com/index.cfm?f...n=chart.create
You can also turn off the crap tune that plays when you first load the site as well
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