JEGS 555-60690 Ford 9 Inch 3:50 Ratio Posi Traction Third Member Assembly Features:

• JEGS Ford 9-inch Third Member Assembly comes preassembled and ready to install.
• Includes a Nodular iron case with 2.891 in. carrier bearings,
• Nodular iron standard pinion support with a top-quality 3:50 ratio ring and pinion
• 28-spline trac-lok clutch style differential, premium bearings, and Pinion Yoke.
• The 1310-series u-bolt style pinion yoke is the optimum size for multiple applications. Perfect for Restorations, Custom Hotrods, Trucks, and many other Street Performance Applications.

JEGS 555-60690 Ford 9 Inch 3:50 Ratio Posi Traction Third Member Assembly Note:

• 9 in. Pinion Gear is assembled using a sold spacer and shims.

FAQ

Is a 3:50 gear ratio good for the street?

• The JEGS Ford 9 Inch Posi Traction Third Member Assembly with a 3:50 gear ratio is an excellent choice for street performance applications. This gear ratio offers a balance between acceleration and highway cruising, making it versatile for both daily driving and spirited street use. With the right combination of power and efficiency, the 3:50 gear ratio enhances overall drivability on the street.

Is Trak-Lok a good posi-traction choice?

• Yes, the JEGS Ford 9 Inch Posi Traction Third Member Assembly features Trak-Lok posi-traction, providing superior traction and stability on various road surfaces. Trak-Lok technology engages both rear wheels simultaneously, ensuring optimal grip and performance, especially during aggressive acceleration or cornering maneuvers. It's an ideal choice for street, strip, or off-road applications.

Is nodular iron stronger than cast iron?

• Yes, nodular iron, used in the construction of the JEGS Ford 9 Inch Posi Traction Third Member Assembly, is renowned for its superior strength and durability compared to traditional cast iron. Its unique microstructure enhances toughness and resistance to cracking, making it an ideal material for high-performance applications where strength and reliability are paramount.

Are 28-spline axles strong enough for the street?

• Yes, 28-spline axles, compatible with the JEGS Ford 9 Inch Posi Traction Third Member Assembly, are suitable for street use, especially when combined with a robust differential like the one offered in this assembly. While 31-spline axles may offer slightly higher strength, 28-spline axles are still capable of handling moderate to high horsepower levels in most street-driven vehicles, providing reliable performance on the road.