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Vivid Racing Gear Select the year of your Ford Expedition:
Motive Gear MGK-321 Differential Complete Ring and Pinion Kit
If you're looking to upgrade your Ford's drivetrain, the Motive Gear MGK-321 is a top-tier choice. Engineered for durability and performance, this complete ring and pinion kit is specifically designed to fit 1999-2010 Ford F-150, 1999-2010 Ford Expedition, and 1999-2010 Lincoln Navigator. With years of racing development behind it, Motive Gear delivers components that have proven their worth in the winners' circle.
Why Choose the MGK-321?
The MGK-321 is built from 8620 steel, ensuring strength and longevity under the most demanding conditions. This kit features a 4.89 gear ratio, making it ideal for those who want to enhance acceleration without sacrificing top speed. Whether you're hitting the trails or cruising the highways, this kit will provide the performance boost you need.
Key Features
- Ring Gear Diameter: 9.75 inches (F9.75-489)
- Pinion Shaft Diameter: 1.97 inches
- Ring Gear Tooth Quantity: 39
- Pinion Gear Tooth Quantity: 8
- Pinion Spline Count: 31
- Standard Rotation for Ring Gear
- Includes 12 bolts for both ring and cover
Fitment
This kit is compatible with:
- Ford F-150 (1999-2010)
- Ford Expedition (1999-2010)
- Lincoln Navigator (1999-2010)
Customer Feedback
F-150 owners have noted that the MGK-321 significantly improved their truck's torque and responsiveness, especially when towing or off-roading. One user mentioned, "After installing the MGK-321, my 2008 F-150 feels like a whole new beast. The acceleration is crisp, and I haven’t experienced any issues, even on steep inclines."
Important Notes
Compatible with Ford 8.8" IFS and Ford 9.75" differential cases. This kit is designed for a 4.88 ratio and comes with all necessary components for installation.
California Proposition 65: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
⚠ WARNING:
Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov
| Make Vehicle | Model | Year |
|---|---|---|
|
1999-2010 Ford Expedition |
Expedition | 1999-2010 |
|
1999-2010 Ford F-150 |
F-150 | 1999-2010 |
|
1999-2010 Lincoln Navigator |
Navigator | 1999-2010 |
Motive Gear is a Midwest Truck and Auto Parts division specializing in producing high-quality drivetrain components for the automotive industry. They offer a wide range of products from differential bearing kits, ring and pinion gear sets, transmission kits and components, transfer case parts, and replacement axle shafts. Today, Motive Gear is one of the most sought-after brands when it comes to drivetrain parts.
Quality and Affordable PartsMotive Gear provides high-quality drivetrain parts at an affordable price. All of their products are designed using the latest manufacturing equipment and goes through an extensive quality control test. It ensures that their products achieve a perfect fit, provides optimum performance and longevity.
Choice Of ChampionsTheir products are also used by many racers from various racing disciplines such as IHRA, NHRA, NMRA, SODA, NMCA, BITD, and NASCAR. It is a testament to the quality and performance their product provides. Their racing participation also allows the company to gather vital data that lets them improve their products further.
Purchase Motive Gear Products At Vivid RacingIf you are planning to upgrade your drivetrain and are searching for a company that you can trust, then Motive Gear is the brand for you. Over the years, they have consistently given customers parts that they can rely on and have proven that quality parts do not always have to be expensive. To know more about Motive Gear, visit Vivid Racing and check out their list of products that fit your specific requirement.
Installation Instructions
Click to view the Installation Instructions here
