View Full Version : Speedo Gear Question


Major Dad
08-20-2004, 05:57:00 PM
I changed the gears in my rear end from 2.73 to 3.42. Now, my speedometer is off. It shows like 55 when I'm only going 40 for example. How do I know what size gear to get for my speedometer? I have a standard TH 350 w/ 15 inch wheels running 245/60 R15 tires and 3.42 rear end.

Thanks - Shane

73454
08-20-2004, 06:07:00 PM
http://www.tciauto.com/tech_info/speedo_gears.htm

Only pay attention to tooth counts. Some of their color information is wrong.