Where is the starter located on 1989 4.3l v6 Chevy blazer?

On a 1989 Chevy Blazer with a 4.3L V6, the starter is located on the passenger side of the engine, toward the front. It's generally fairly low down, near the bellhousing (where the engine connects to the transmission). You'll likely need to remove some components for better access, depending on the specific configuration.