THIS MOD IS MEANT TO BE INSTALLED WITH CHROME'S TEXTURE IMPORTER!
Read this if you don't know what this mod is
Back when tachometers weren't commonly used in cars, to let drivers know when to shift, there were indicators on the speedometer telling the driver what gear they should be using. This is what this mod is.
If you want to install it manually using Unity Assets Explorer, flip over the image using your favorite image editor (I use paint.net)
This texture is located in sharedassets3.