91049346-31-411 SPEEDWAY MOTORS Posi Member Spl Ford

Review SPEEDWAY MOTORS Fits Ford Inch Posi Aluminum Case 3rd Member 31 Spl 4.11 Ratio for FORD

The Speedway 91049346-31-411 Ford Posi 3rd Member is a crucial component in the drivetrain system of your Ford vehicle. This third member assembly is specifically designed for Ford applications with a 31-spline differential and a gear ratio of 4.11.

This third member is engineered with precision and durability in mind. It is constructed from high-strength steel, ensuring it can withstand the heavy loads and torque generated by your vehicle's engine. The spline design provides excellent grip and torque transfer between the third member and the differential, contributing to improved performance and efficiency.

The Speedway 91049346-31-411 Ford Posi third member features a Posi-traction differential, which is a type of limited-slip differential. This differential uses clutches to distribute engine torque evenly between the wheels, providing superior traction and stability, especially during cornering and acceleration. This can result in improved handling and reduced tire wear.

This third member is designed to be a direct replacement for your OEM component, ensuring a seamless installation process. It comes with all necessary hardware and instructions to make the installation process as straightforward as possible. The third member is also machined to exacting tolerances, ensuring a proper fit and function when installed.

The Speedway 91049346-31-411 Ford Posi 3rd Member is an excellent choice for those seeking to upgrade their drivetrain system for better performance and durability. It is a high-quality, affordable alternative to OEM components, providing excellent value for money.

In summary, the Speedway 91049346-31-411 Ford Posi 3rd Member is a robust and reliable component designed for Ford vehicles with a 31-spline differential and a 4.11 gear ratio. It offers improved performance, durability, and traction, making it an excellent choice for those seeking to enhance their vehicle's drivetrain system.

The Speedway 91049346-31-411 Ford Posi 3rd member 4.11 is a crucial component in the drivetrain system of Ford vehicles equipped with a 4.11 differential. This part is essential for the proper functioning of your vehicle's power transmission. Here are some pros and cons that may help you decide whether to buy this part:

1. OEM (Original Equipment Manufacturer) part: This part is manufactured by Ford's original equipment supplier, ensuring a perfect fit and compatibility with your vehicle.

2. Durable: This 3rd member is made of high-quality materials, designed to withstand the rigors of frequent use and heavy loads.

3. Improved Performance: Upgrading to a stronger 3rd member can provide better power transfer, improved acceleration, and enhanced overall performance.

4. Peace of Mind: By purchasing an OEM part, you can enjoy the confidence that comes with knowing you're using a genuine Ford part.

1. Cost: OEM parts, like this one, can be more expensive compared to aftermarket alternatives.

2. Availability: Depending on your location or the availability at your local dealership, you may need to wait a while to get your hands on this part.

If you're looking for a reliable, high-performance, and genuine Ford part to upgrade your vehicle or replace a worn-out component, the Speedway 91049346-31-411 Ford Posi 3rd member 4.11 is an excellent choice. While it may come with a higher price tag compared to aftermarket alternatives, the benefits of using an OEM part, such as improved performance, enhanced durability, and peace of mind, can outweigh the cost.

If you're in the market for a new Ford Posi 3rd member, consider purchasing the Speedway 91049346-31-411. This OEM part is designed to provide you with the best performance, durability, and compatibility for your Ford vehicle. While the cost may be higher than some aftermarket alternatives, the benefits and peace of mind that come with using a genuine Ford part are well worth the investment.

Details:

Precision assembly for the correct backlash, reload, and pinion shims to ensure gear pattern. With solid bearing spacers and the proper shims, we eliminate this problem make setting reload easy repeatable during installation, service, gear changes. Hand-assembled by our trained technicians for an unbeatable combination of quality and value, precision assembly the correct backlash, reload, proper amount pinion shims to ensure pattern on ring gear teeth, our ready install aluminum 9-inch third member is ideal street tires medium horsepower applications, lightweight housing has forged caps extra beef where its needed while saving approximately 12 lbs. We bring this combination of precision assembly and quality components to you at a price that can't be beat.

While they are known for their strength, also weight. Based on the original limited-slip designs of ems, these differential units provide added benefits experience over millions miles and decades proven reliability. Yes, I recommend this product.

Spacer and shim setup maintains critical pinion depth settings is easier to service than traditional crush sleeves. A gear-style operation means no ing around corners like lockers have and our posi units feature heat-treated spider gears in a forged steel case. Lock-style pinion nut with pre-applied lactate. Our third-member units are shipped ready to install in a durable, reusable poly storage case.

Proper ring pinion gear teeth mesh pattern for quiet operation: getting a proper pattern on the ring gear teeth is crucial. Includes form-fitted, reusable red poly storage case. Billet steel adjuster nuts with heavy duty keepers to maintain ring pinion settings. Standard gear oil fill location on drivers side of casting.

Headquarters. Lightweight aluminum housing has forged caps and extra beef where needed while saving 12 lbs. Tapered steel roller bearings minimize friction, better handle thrust loads and increase load-carrying capacity. They are among the heaviest car-based axle assemblies known.

Gear posi traction differential gives limited-slip performance and quiet operation. For your car or truck that means quicker acceleration, better handling, and even improved braking, as suspension axle can respond more quickly to changing road conditions, keeping the tires in contact with. Stronger due to its larger bearings, our Dayton pinion support also uses a fixed spacer-and-shim setup maintain critical depth settings under high load, unlike traditional crush sleeves which often compress further affecting the reload setting and leading failure. Over cast iron versions.

Part # 91049346-31-411 condition new brand Speedway motors sold each details a356-t6 housing with 3.062-inch carrier bearing race diameter. Vito pinion seal, resistant to chemicals and high temperatures. Units include a Vito pinion seal providing long-lasting oil and chemical resistance. Ring and pinion gears made from 8620 cold-rolled steel for long wear.

Our time-proven, step-by-step process ensures the correct backlash, reload, and proper amount of pinion shims to ensure pattern on ring gear teeth for maximum performance minimum noise.

specifications differentialsdepo:

• for makes: Ford
• brand: Speedway Motors
• type: Differential Third Members
• item length: 18.00
• item width: 13.000
• california prop 65 warning: True
• ean: 9104934631411

returns differentialsdepo:

• time: 30 days
• policy: returns accepted
• paid by: seller

payments differentialsdepo:

• credit card: visa
• other
• wallet: google-pay

general differentialsdepo:

• category: Auto Parts > Transmission Drivetrain > Differentials > Assemblies

shipping differentialsdepo:

• service: standard
• type: fixed
• transit: 2-5 days
• class: standard

offer differentialsdepo:

• availability: in stock
• options: ship-to-home
• in stock #: 5
• prices: $8.68–$84.99
• item condition:
  • New
  • Used
  • New other (see details)
• sold #: 15
• started: may 27, 2026

seller differentialsdepo:

• rating: 99.8%
• # reviews: 366904
• city: lincoln, nebraska