Whats is the gear ratio for a 2000 Chevy silverado extended cab 4x4 half ton?

There's no single gear ratio for a 2000 Chevy Silverado extended cab 4x4 half-ton. The gear ratio depends on several factors, including the engine option, transmission type, and axle codes. To find the gear ratio for *your specific* truck, you need to look at one of these places:

* The sticker on the driver's side doorjamb: This often lists the axle ratio. Look for something like "Axle Ratio: 3.73" or similar.

* The glove box: Your owner's manual might be in there, and it will likely list the gear ratio.

* The vehicle identification number (VIN): A dealer or mechanic can use the VIN to look up the specifications of your truck, including the axle ratio. Online VIN decoders exist but may not always be reliable.

* The differential itself: You can physically look at the differential housing (usually towards the rear axle) for a stamped-in code that often indicates the ratio. *This requires some mechanical knowledge and is usually not necessary.*

Without more specific information about your truck's options, it's impossible to give you the correct gear ratio. Common ratios for that year and model range from 3.42 to 4.10, but yours might be different.