Gear Ratio Calculator

FYI, here's a gear ratio calculator that allows you to compare stock and custom setups. You can vary the transmission gear ratios, transfer case ratios, axle ratios, and tire sizes. It'll give you RPM's at various speeds of your choice or speeds at your choice of RPM's.

You will need to look up your stock gear ratio for the rear diff. If you have the 6 speed tranny (RA60) your transmission ratios are already there. If you have the 5 speed, you've got to enter in manually. Above all else, READ THE INSTRUCTIONS AT THE TOP OF THE WEBPAGE if you're not sure how to use it.

Have fun and don't go too

http://www.grimmjeeper.com/gears.html

 

how do I find my rear end ratio? Ihave a 2004 trd 4w