i went from a 235 tire to a 31 inch mud rover i know i need a new speedo gear i have a black 20 tooth but idk what new gear i need can someone help me out. i got all my other info from here

http://www.therangerstation.com/tech...peedogear.html

thanks guys

 

just a bump since i made this at 3 am

 

Get a GPS or a friend with an accurate speedometer and find out what speed your speedometer is reading at a given speed. So lets say the GPS says 70 mph and yours says 65 mph. Then use this little equation with 20 teeth and it will tell you exactly how may teeth you need. If you need more help let me know. I also have a couple of speedo gears layin around.

New Teeth = (Current Teeth x Speedo Reading)/Actual Speed.

 

no i dont know anyone with a gps