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![9 in. Ford Third Member Assembly, 3:25 Ratio [Nodular Case, 31-Spline]](https://www.jegs.com/images/mini_750/700/718/718-3mnt31aa325.jpg)
Vehicle Info NeededMOSER ENGINEERINGPART NUMBER: 718-3MNT31AA325
9 in. Ford Third Member Assembly, 3:25 Ratio [Nodular Case, 31-Spline]
$2,00500
Ships on 09/10/2026
Lowest Price GuaranteeNodular Iron Case
- 9 in. Ford Third Member Assembly
- Nodular Iron Case
- Aluminum Daytona Pinion Support
- 31-Spline
- Ring/Pinion Ratio: 3.25:1
- 1350 Series Yoke
- These Moser Engineering Ford 9 in. third member assemblies are designed to help you get that horsepower to the ground. They include your choice of an aluminum, nodular iron or stock center section, a differential, an axle spline, a U-joint style yoke, pinion support, and gear ratio. Whether you're assembling a daily driver, street rod, or race car, the Moser Engineering Ford 9 in. third member assemblies packages will provide the durability that your vehicle deserves.
Part TypeThird Member Assembly
Product LineMoser Engineering Complete 3rd Member Assemblies
BrandMOSER ENGINEERING
Part CategoryPerformance Parts
Yoke IncludedYes
Case StyleFord 9 in.
Standard Pinion LocationYes
QuantitySold individually
Yoke Style1350 Series
Bearings IncludedYes
Carrier Bearing Diameter2.891 in (73.431 mm)
Main Cap Retention StyleStud
Main Cap MaterialNodular iron
Axle Spline Quantity31
Ring And Pinion Ratio3.25:1
Carrier TypeTruetrac Posi
Part FitmentSemi Universal
Case MaterialNodular iron
Pinion Support Bolt Quantity5
Vendor Part Number3MNT31AA325
Package Qty1
Package TypeEA
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