how to figure final gear ratio?

[jonnyB]

just wonderin how to figure it, i have 4.70s in the tcase and 5.29s in the axles.

 

[bcammons21]

found this online if it helps you any.
http://californiajeeper.com/crawl-ratio.htm

 

[Bildo]

Multiply those numbers by the 1st gear in the transmission. (Trans x Tcase x Axle = crawl)

 

[jonnyB]

ok, thanks alot. does anyone know the first gear ratio in a 81 yota 5speed?

 

[bcammons21]

Looks like 3.93 off marlin crawler.
http://www.marlincrawler.com/java/transratio.html

 

[fisher_man_matt]

Another gear calculator. http://www.grimmjeeper.com/gears.html