Short Summary: The 161 F9.75-355 Motive Gear is a precision-engineered differential ring & pinion set designed for Ford 9.75" rear axles with a 3.55 gear ratio.
This gear set offers reliable performance and durability for everyday driving, towing, and utility use.
Key Features Gear Ratio: 3.55 Ring Gear Tooth Count: 39 Pinion Gear Tooth Count: 11 Pinion Spline Count: 31 Ring Gear Diameter: 9.75" Material: 8620 Steel Bolt Count: 12-Bolt Vehicle Compatibility Ford 1997–2014 F-150 1997 F-250 / F-250 HD 1999 F-250 Super Duty 2004 F-150 Heritage 1997–2011 Lobo 2002–2014 E-150 / Econoline 1998–2002 E-250 Econoline 2010–2013 Econoline Van & Wagon 2015–2018 Transit-150 / Transit-250 / Transit-350 1997–2003, 2005–2011 Expedition Lincoln 1998–1999, 2002–2004, 2006–2007, 2010, 2012–2014 Navigator 2002 Lincoln Blackwood 2007–2008 Lincoln Mark LT Replaces OEM & Aftermarket Part Numbers Ford: 3L1Z-4209-CB, 4L3Z4209BA, 5L3Z-4209-E, 8L3Z4209K, 8L3Z4209KA, 8L3Z4209Q Yukon Gear: YG F9.75-355, 24434 EXCEL from Richmond: F975355 Nitro Gear: F9.75-355-NG Dorman: 697-331 Pro-King: 763B730 SVL: 2020861, DS2020861 Warranty & Quality Assurance This Motive Gear product is backed by a 1-Year or 50,000-Mile Warranty.
Manufactured to strict standards with 8620 steel for superior wear resistance and performance in demanding conditions.
A trusted solution for restoring or upgrading your Ford's drivetrain.
