The Revolution Gear & Axle ring and pinion set for Dana 30 front axles provides a 4.56 final-drive ratio replacement matched to that axle family. The overview states the product and its purpose for front-axle gearing. This matched set is intended as the correct gearing replacement when rebuilding or repairing Dana 30 front axles that require a 4.56 ratio.
Revolution Gear & Axle Dana 30 Front Axle 4.56 Ratio Ring & Pinion Set