* 4L60E: A 4-speed automatic transmission. This was very common.
* 4R70W: A 4-speed automatic transmission, less common than the 4L60E.
* 4L80E: A 4-speed automatic transmission, usually found in heavier-duty trucks or those with larger engines.
* Manual Transmissions: While less common in this year, some 1998 Chevrolet 1500s were available with 5-speed manual transmissions (likely a NV3500 or similar).
To know for certain what transmission is in *your* specific 1998 Chevrolet 1500, you need to check one of the following:
* The vehicle's identification number (VIN): A VIN decoder website or your local Chevrolet dealer can use the VIN to determine the original specifications, including the transmission type.
* The build sheet (if available): If you have the original window sticker or build sheet, it will list the transmission.
* The transmission itself: Look for a tag on the transmission case. This will usually identify the transmission type. However, this may be difficult to access without some mechanical knowledge.
Without more information about your specific truck, it's impossible to say definitively which transmission it has.
