TEN Factory MG25144 Bolt Pattern Spline Drive Axle Shaft Assembly for Ford 9.75", 31.75" 34 Spline, 5x135mm – Right (Passenger) Side Fits Ford F-150 Expedition Navigator –Replaces F75Z4234MA AXF975001

Short Summary: The TEN Factory MG25144 Axle Shaft is a high-strength, direct-replacement passenger-side shaft for Ford 9.75" rear axles in select 1997–2004 Ford and Lincoln vehicles. Built with premium 1541H manganese and includes all components for a complete install.Key FeaturesAxle Type: Rear Axle – Right (Passenger) SideApplication: Ford 9.75" (12-Bolt) DifferentialSpline Count: 34 SplineAxle Length: 31.75 InchWheel Bolt Pattern: 5 x 135 mmMaterial: 1541H Manganese SteelIncludes: Axle Shaft, Bearing, Seal, StudsBearing Dimensions: 2.53" OD / 1.62" IDVehicle CompatibilityFordF-150 (1997–2004)F-150 Heritage (2004)Expedition (1997–2002)Lobo (1997–2004)LincolnNavigator (1998–2002)Replaces OEM & Aftermarket Part NumbersFord: F75Z4234MAAlloy USA: 15144EXCEL from Richmond: 92-23332, 92-23395Nitro Gear & Axle: AXF975001Superior Axle and Gear: PA6045Warranty & Quality Assurance Backed by TEN Factory’s 1-Year Warranty, the MG25144 axle shaft is engineered to handle demanding applications. Each shaft is heat-treated and precision-machined to deliver superior strength, long-term reliability, and OE-style fitment.

• Right-hand performance rear axle shaft for Ford 9.75" (12-bolt) differentials in F-150, Expedition, Navigator, and Lobo from 1997–2004.
• Shaft length: 31.75"; 34-spline inboard; 5 x 135 mm lug pattern; fits small bearing housing (2.53" OD / 1.62" ID).
• Manufactured from 1541H manganese steel for durability and strength in high-torque applications.
• Includes axle shaft, bearing, seal, and wheel studs—ready to install with OEM fit and finish.
• Replaces OE and aftermarket part numbers including Ford F75Z4234MA, Alloy USA 15144, Nitro AXF975001.