hey guys i have a 2.73 rear end ratio and im getting 3.42 gears.so wat are the colors of the speedo gears for my application.i have a mechanical speedometer.iwent ot the dealer and they only show colors and part#'s.

Here's a pic fer ya, this is the speedo drive gear out of my '86 Dirty Bird, originally a 2.8 litre V6 w/T-5.

Don't ask me what colour GM calls it. I count 19 teeth on this puppy.