The Axle Running Gear Bundle Pack #4 is a comprehensive kit designed for both kids and adults vehicles and spares. This kit includes an 870mm axle length, perfect for various vehicle configurations. It features a sprocket and disc carrier hub input and rim/wheel hub input, both with 23 teeth. The pillow block bearing mount is sized at 25mm, ensuring compatibility with many setups. The hub PCD is equipped with a 3 stud, 78mm configuration, while the carrier PCD comes with a 4 stud, 68mm setup. Additional hardware includes castle nuts, spacers, and axle collars, all essential for a complete installation. Ideal for those looking to build or repair their vehicles, this bundle pack offers both reliability and durability.