Outer Limits 4x4 Board

Anyone out there got a good Gear ratio calculator for Excel

tried google?

hey mick i'v been using this site for years it has every formula/calculator that even a McQuiver type fixer like yourself should ever need.

scroll down the left hand side and find the automotive area.

http://www.ajdesigner.com/index.htm

This is my one:

http://members.optusnet.com.au/~chimpbo ... ratios.xls