Short Summary: The ring and pinion set, Motive Gear F10.5-489PK, is engineered for Ford 10.5" 12-bolt differentials, offering a 4.89 gear ratio with strength, torque, and reliability.
Ideal for heavy-duty applications such as towing, hauling, and off-road driving across multiple Ford models.
Key Features Differential Fitment: Ford 10.5" (12-Bolt) Gear Ratio: 4.89 Pinion Gear Tooth Count: 9 Pinion Shaft Diameter: 1.94 Inches Pinion Spline Count: 31 Ring Gear Tooth Count: 44 Ring Gear Diameter: 10.25 Inches Ring Gear Material: 8620 Steel Rotation: Standard Includes: Inner and Outer Pinion Bearings (10.25" style) Note: Requires Ford 10.25" installation kits – do not substitute Vehicle Compatibility Fits Ford vehicles with the 10.5" 12-bolt differential from 1999 to 2007, offering OE-quality fitment and performance.
Ford 2000–2005 Excursion 2004–2007 F-150 2004 F-150 Heritage 1999–2007 F-250 / F-250 Super Duty 1999–2007 F-350 / F-350 Super Duty 2004–2007 Lobo Replaces OEM & Aftermarket Part Numbers Yukon Gear & Axle: 24570, YG F10.5-488-31 EXCEL from Richmond: F105489A Warranty & Quality Assurance Backed by a 1-Year or 50,000-Mile Warranty, Motive Gear products are trusted for their engineering, OE-quality fitment, and long-lasting performance.
Ideal for professional installers and enthusiasts looking to restore or enhance drivetrain efficiency and strength.
