View Full Version : TH400 speedo gear for bigger rims?


g356gear
Sep 7th, 09, 12:10 PM
I have switched to 18" rims and a 35 series tires and was curious for opinions on what tooth number gear I should switch out to for my speedometer to be more accurate. I am running 3.37's and a Turbo 400.

nedhed
Sep 7th, 09, 01:28 PM
This should help you out!!

http://www.tciauto.com/Products/TechInfo/speedo_gears.asp

g356gear
Sep 10th, 09, 03:49 PM
# Drive Teeth X Axle Ratio X Tire Rev. per Mile= # Driven Teeth1001

So what is the difference between drive teeth and driven teeth?