* Year: 1997 (You've already got this one!)
* Make: Chevrolet
* Model: Silverado (This is broad; more specific model info would be helpful) Is it a 1500, 2500, or 3500? Knowing the specific trim level (e.g., LS, LT, WT) can also help.
* Engine: This is crucial. The transmission is matched to the engine. Knowing the engine displacement (e.g., 4.3L V6, 5.7L V8, 6.5L Diesel, etc.) is essential. The engine code (found on a sticker under the hood or on the engine itself) is even better.
* Transmission Type: While you're looking for a used transmission, knowing the *type* of transmission you currently have will be extremely helpful. Was it an automatic or manual transmission? If automatic, what are the number of gears (e.g., 4-speed, 4L60E)? If manual, what is the gear ratio?
* VIN (Vehicle Identification Number): This is the most definitive way to ensure you get the correct transmission. The VIN contains all the information about your truck's specifications. This is the best piece of information.
* Drive Type: Is it 2WD (two-wheel drive) or 4WD (four-wheel drive)? This is important as transmissions for 4WD are different.
The more information you provide, the less chance you'll end up with the wrong transmission. A reputable parts supplier should be able to help you find the correct transmission using this information.
