Looking for the best 31-spline 12-bolt differential gears to upgrade your vehicle’s performance? We’ve curated a list of top-rated options from trusted brands like Motive Gear, Spicer, and EXCEL, ensuring durability and smooth power delivery for your towing, hauling, or off-roading needs.
Upgrading your vehicle’s differential gears can transform its performance. Whether you’re towing, hauling, or off-roading, the right gears make all the difference. We’ve gathered the best 31-spline 12-bolt differential gears to help you find the perfect fit.
These gears are built tough and designed for smooth power delivery. From Ford to Dodge, we’ve got options for every need. Get ready to boost your vehicle’s capability with confidence.
Discover top brands like Motive Gear, Spicer, and EXCEL. Each product is tested for durability and performance. Let’s dive in and find the ideal upgrade for your ride!
List of Top 10 31-Spline 12-Bolt Differential Gears
| Image | Title | Best For | Price |
|---|---|---|---|
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Motive Gear F10.25-4.10L Differential Ring & Pinion, For Ford 10.25″, Gear Ratio 4.10, 12-Bolt, 31 Spline, 10 Pinion & 41 Ring Tooth Fits Ford F-Series, Econoline, Lobo & Chassis, Rep. YG F10.25-411L |
This Motive Gear Differential Ring & Pinion is perfect for Ford owners who need reliable, heavy-duty performance. It’s ideal for towing, hauling, or work trucks, offering strength and durability for tough jobs. |
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Spicer SVL 2020861 Differential Ring and Pinion Gear Set for Ford 9.75″, 3.55 Ratio |
This Spicer SVL 2020861 Differential Ring and Pinion Gear Set is perfect for Ford owners who need a reliable replacement for their 9.75-inch axle with a 3.55 ratio. It’s easy to install and built to last, making it ideal for daily drivers or light-duty trucks. |
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Motive Gear F10.5-373PK Ring & Pinion Set, 31 Spline for Ford 10.5″ -Fit for 12-Bolt Ford 10.5 Differential –3.73 Ratio, Compatible for 1999-2007 Ford F-250, F-350, Excursion –Replaces YG F10.5-373-31 |
This Motive Gear Ring & Pinion Set is perfect for Ford owners who want to boost their truck’s performance. It’s ideal for towing and highway driving, giving you better torque and fuel efficiency. |
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National Drivetrain 3.73 Ring and Pinion Gear Set & Motive Gear Master Bearing Kit for Ford 10.25″ Differential | 1985-1998 F-250 F-350 E-Series | 8620 Steel | 12-Bolt | 31 Spline | R10.25RMK |
This National Drivetrain 3.73 Ring and Pinion Gear Set is perfect for Ford truck owners who need a reliable upgrade. It’s ideal for 1985-1998 F-250, F-350, and E-Series models with a 10.25″ differential. The master bearing kit ensures smooth performance and long-lasting durability. |
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A-Premium Rear 31 Spline 12-Bolt Limited-Slip Locker Compatible with Dodge Ram 1500, Charger Van 2500, Charger, Durango, Challenger, Dakota, B100, B150, B200, B250, D300, D350 & Chrysler Imperial |
This A-Premium Rear 31 Spline 12-Bolt Limited-Slip Locker is perfect for Dodge and Chrysler owners who need a reliable and durable upgrade for their vehicle’s rear axle. It’s ideal for those looking to improve performance and ensure smooth torque transmission in their classic or modern trucks and vans. |
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Spicer SVL 2020864 Differential Ring and Pinion Gear Set for Ford 9.75″, 3.73 Ratio |
This Spicer SVL 2020864 Differential Ring and Pinion Gear Set is perfect for Ford owners needing a reliable upgrade. It fits Ford 9.75″ applications with a 3.73 ratio, making it ideal for improved performance. |
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USA Standard Gear (ZG GM12T-308) Ring & Pinion Gear Set for GM 12-Bolt Truck Differential |
This USA Standard Gear Ring & Pinion Set is perfect for truck owners who need a reliable upgrade for their GM 12-bolt differential. It’s ideal for those seeking a 3.08 axle ratio and confidence in their install. |
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EXCEL F10355, Differential Ring & Pinion, For Ford 10.25 (12-Bolt), Gear Ratio 3.55, 31 Spline, 11 Pinion & 39 Ring Tooth Fits 1985-92 Ford F-250, F-350, F-Super Duty, Replaces Motive Gear F10.25-355 |
This differential ring & pinion set is perfect for Ford truck owners who need a reliable replacement for their 1985-1992 F-250, F-350, or F-Super Duty. It’s easy to install and built to last, making it ideal for daily drivers and off-road enthusiasts. |
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EXCEL F10410, Differential Ring & Pinion, For Ford 10.25, Gear Ratio: 4.10, 12-Bolt, 31 Spline, 10 Pinion & 41 Ring Tooth Fits Ford F-250/F-350/F-Super Duty (1985-1992), Repl. Motive Gear F10.25-410 |
This EXCEL F10410 Differential Ring & Pinion is perfect for Ford truck owners who need reliable, heavy-duty performance. It’s ideal for towing and tough jobs, fitting 1985-1992 Ford F-250, F-350, and F-Super Duty models. |
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EXCEL F10410L, Differential Ring & Pinion, For Ford 10.25″, Gear Ratio: 4.10, 12-Bolt, 31 Spline, 10 Pinion & 41 Ring Tooth – Fits Ford F-250, F-350 & F-Super Replace USA Standard ZG F10.25-411L. |
This EXCEL F10410L Differential Ring & Pinion is perfect for Ford truck owners who need reliable performance. It’s ideal for 1993-1998 F-250, F-350, and F-Super Duty models, offering strong towing power and smooth highway driving. |
Detailed Reviews
Discover the top 10 31-Spline 12-Bolt Differential Gears in our expert-curated guide. Each product is thoroughly reviewed for performance, durability, and value. Whether you need tough upgrades or smooth rides, this guide has you covered. Find the perfect fit for your vehicle and upgrade with confidence today!
1. Motive Gear F10.25-4.10L Differential Ring & Pinion, For Ford 10.25″, Gear Ratio 4.10, 12-Bolt, 31 Spline, 10 Pinion & 41 Ring Tooth Fits Ford F-Series, Econoline, Lobo & Chassis, Rep. YG F10.25-411L

The Motive Gear F10.25-4.10L Differential Ring & Pinion is built tough for Ford trucks. Made from 8620 heat-treated steel, it handles heavy towing and hauling with ease.
It fits perfectly in Ford 10.25″ axles and works with F-Series, Econoline, and more. Enhances low-end power and comes with a 1-year warranty.
| Pros | Cons |
|---|---|
|
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Perfect For:
This Motive Gear Differential Ring & Pinion is perfect for Ford owners who need reliable, heavy-duty performance. It’s ideal for towing, hauling, or work trucks, offering strength and durability for tough jobs.
Ready to Purchase?
2. Spicer SVL 2020861 Differential Ring and Pinion Gear Set for Ford 9.75″, 3.55 Ratio

Unleash the power of your Ford with the Spicer SVL 2020861 Differential Ring and Pinion Gear Set. This premium upgrade is designed for Ford 9.75″ applications, promising a noticeable performance boost. Get ready for a smoother, more efficient drive.
Experience the perfect balance with a 3.55 ratio. This set ensures optimal torque and speed for your vehicle.
Upgrade your Ford’s drivetrain today. Experience Spicer’s legendary durability. Enjoy enhanced off-road capability.
| Pros | Cons |
|---|---|
|
|
Perfect For:
This Spicer SVL 2020861 Differential Ring and Pinion Gear Set is perfect for Ford owners who need a reliable replacement for their 9.75-inch axle with a 3.55 ratio. It’s easy to install and built to last, making it ideal for daily drivers or light-duty trucks.
Ready to Purchase?
3. Motive Gear F10.5-373PK Ring & Pinion Set, 31 Spline for Ford 10.5″ -Fit for 12-Bolt Ford 10.5 Differential –3.73 Ratio, Compatible for 1999-2007 Ford F-250, F-350, Excursion –Replaces YG F10.5-373-31

The Motive Gear F10.5-373PK Ring & Pinion Set is a high-performance gear set designed for Ford 10.5″ differentials. It offers a 3.73 ratio, perfect for improved towing and highway performance.
Made from durable 8620 steel, this set ensures superior strength and long-lasting durability. Its precision-cut 31-spline pinion guarantees smooth power transfer and accurate fitment.
Compatible with 1999-2007 Ford F-250, F-350, and Excursion, it’s a direct OEM replacement. Easy installation and factory performance make it a reliable choice.
| Pros | Cons |
|---|---|
|
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Perfect For:
This Motive Gear Ring & Pinion Set is perfect for Ford owners who want to boost their truck’s performance. It’s ideal for towing and highway driving, giving you better torque and fuel efficiency.
Ready to Purchase?
4. National Drivetrain 3.73 Ring and Pinion Gear Set & Motive Gear Master Bearing Kit for Ford 10.25″ Differential | 1985-1998 F-250 F-350 E-Series | 8620 Steel | 12-Bolt | 31 Spline | R10.25RMK

Upgrade your Ford truck’s drivetrain with this premium gear set and bearing kit. It offers a 3.73 gear ratio for optimal performance. Built with tough 8620 steel, it’s designed for durability.
This kit is perfect for 1985-1998 Ford F-250, F-350, and E-Series models. It includes all the essential bearings and seals for a complete rear axle overhaul.
| Pros | Cons |
|---|---|
|
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Perfect For:
This National Drivetrain 3.73 Ring and Pinion Gear Set is perfect for Ford truck owners who need a reliable upgrade. It’s ideal for 1985-1998 F-250, F-350, and E-Series models with a 10.25″ differential. The master bearing kit ensures smooth performance and long-lasting durability.
Ready to Purchase?
5. A-Premium Rear 31 Spline 12-Bolt Limited-Slip Locker Compatible with Dodge Ram 1500, Charger Van 2500, Charger, Durango, Challenger, Dakota, B100, B150, B200, B250, D300, D350 & Chrysler Imperial

The A-Premium Rear 31 Spline 12-Bolt Limited-Slip Locker is a reliable upgrade for your vehicle. It works with many Dodge and Chrysler models, ensuring a perfect fit. This part boosts performance and durability.
It’s made from strong aluminum, resists rust, and seals well. The Eaton-style clutch ensures smooth torque transmission.
This locker fits all gear ratios and has a nodular iron case. It’s built to last and keeps your vehicle running efficiently.
| Pros | Cons |
|---|---|
|
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Perfect For:
This A-Premium Rear 31 Spline 12-Bolt Limited-Slip Locker is perfect for Dodge and Chrysler owners who need a reliable and durable upgrade for their vehicle’s rear axle. It’s ideal for those looking to improve performance and ensure smooth torque transmission in their classic or modern trucks and vans.
Ready to Purchase?
6. Spicer SVL 2020864 Differential Ring and Pinion Gear Set for Ford 9.75″, 3.73 Ratio

Upgrade your Ford’s performance with the Spicer SVL 2020864 Differential Ring and Pinion Gear Set. This high-quality set is engineered for Ford 9.75″ applications, delivering a perfectly balanced 3.73 ratio.
Experience smoother rides. Enjoy enhanced power. Get back on the road with confidence.
| Pros | Cons |
|---|---|
|
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Perfect For:
This Spicer SVL 2020864 Differential Ring and Pinion Gear Set is perfect for Ford owners needing a reliable upgrade. It fits Ford 9.75″ applications with a 3.73 ratio, making it ideal for improved performance.
Ready to Purchase?
7. USA Standard Gear (ZG GM12T-308) Ring & Pinion Gear Set for GM 12-Bolt Truck Differential

Upgrade your GM 12-Bolt Truck Differential with the USA Standard Gear (ZG GM12T-308) Ring & Pinion Gear Set. This high-quality set ensures confidence in your installation. It’s the perfect choice for your truck.
Get reliable performance with a standard one-year warranty. This gear set features a 3.08 axle ratio for your needs.
| Pros | Cons |
|---|---|
|
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Perfect For:
This USA Standard Gear Ring & Pinion Set is perfect for truck owners who need a reliable upgrade for their GM 12-bolt differential. It’s ideal for those seeking a 3.08 axle ratio and confidence in their install.
Ready to Purchase?
8. EXCEL F10355, Differential Ring & Pinion, For Ford 10.25 (12-Bolt), Gear Ratio 3.55, 31 Spline, 11 Pinion & 39 Ring Tooth Fits 1985-92 Ford F-250, F-350, F-Super Duty, Replaces Motive Gear F10.25-355

Upgrade your Ford truck’s performance with the EXCEL F10355 Differential Ring & Pinion set! This premium gear set is built for tough jobs and lasting durability.
It’s a direct fit for your 1985-1992 Ford F-250, F-350, or F-Super Duty. Enjoy peace of mind with a 1-year/50,000-mile warranty. Get superior performance today!
| Pros | Cons |
|---|---|
|
|
Perfect For:
This differential ring & pinion set is perfect for Ford truck owners who need a reliable replacement for their 1985-1992 F-250, F-350, or F-Super Duty. It’s easy to install and built to last, making it ideal for daily drivers and off-road enthusiasts.
Ready to Purchase?
9. EXCEL F10410, Differential Ring & Pinion, For Ford 10.25, Gear Ratio: 4.10, 12-Bolt, 31 Spline, 10 Pinion & 41 Ring Tooth Fits Ford F-250/F-350/F-Super Duty (1985-1992), Repl. Motive Gear F10.25-410

Conquer tough jobs with the EXCEL F10410 Differential Ring & Pinion. This precision-engineered set is built for Ford 10.25 differentials, specifically for F-250, F-350, and F-Super Duty models from 1985-1992. Get ready for unmatched performance!
It boasts a 4.10 gear ratio for excellent torque. The short pinion design is perfect for towing. Enjoy superior wear resistance with its 8620 steel construction.
This heavy-duty upgrade features a 12-bolt, 31-spline setup for ultimate toughness. Plus, it comes with a 1-year / 50,000-mile warranty for your peace of mind. Ready to upgrade your ride?
| Pros | Cons |
|---|---|
|
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Perfect For:
This EXCEL F10410 Differential Ring & Pinion is perfect for Ford truck owners who need reliable, heavy-duty performance. It’s ideal for towing and tough jobs, fitting 1985-1992 Ford F-250, F-350, and F-Super Duty models.
Ready to Purchase?
10. EXCEL F10410L, Differential Ring & Pinion, For Ford 10.25″, Gear Ratio: 4.10, 12-Bolt, 31 Spline, 10 Pinion & 41 Ring Tooth – Fits Ford F-250, F-350 & F-Super Replace USA Standard ZG F10.25-411L.

Upgrade your Ford truck with the EXCEL F10410L Differential Ring & Pinion. This high-quality upgrade is built to last.
Get balanced performance with a 4.10 gear ratio. It’s made from tough 8620 steel. Enjoy smooth operation and long-lasting durability.
This is a direct-fit replacement for your Ford F-250, F-350, and F-Super Duty. It also comes with a 1-year / 50,000-mile warranty.
| Pros | Cons |
|---|---|
|
|
Perfect For:
This EXCEL F10410L Differential Ring & Pinion is perfect for Ford truck owners who need reliable performance. It’s ideal for 1993-1998 F-250, F-350, and F-Super Duty models, offering strong towing power and smooth highway driving.
Ready to Purchase?
Buying Guide
Upgrading your differential gears can boost your vehicle’s performance. Choose the right one for towing, hauling, or off-roading.
Buying the Best 31-Spline 12-Bolt Differential Gears is easy with this guide. We’ll help you find the perfect fit for your needs.
Here are the key factors to consider:
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Vehicle Compatibility:
Make sure the gears fit your make and model. Check the year, axle size, and ratio for a perfect match. -
Gear Ratio:
Choose a ratio that suits your driving needs. Lower ratios boost torque for towing, while higher ratios improve speed. -
Material Quality:
Look for gears made from durable materials like 8620 steel. They last longer and handle tough conditions. -
Brand Reputation:
Stick with trusted brands like Motive Gear, Spicer, and EXCEL. They offer reliable performance and warranties. -
Installation Ease:
Opt for gears with simple installation. Some kits include bearings and seals for a complete upgrade. -
Warranty Coverage:
A good warranty gives peace of mind. Look for 1-year or mileage-based coverage. -
Performance Needs:
Decide if you need smooth power delivery, off-road capability, or heavy-duty strength. -
Price and Value:
Compare prices to find the best value. Balance cost with quality and features.
With these tips, you’ll find the perfect differential gears for your vehicle. Upgrade with confidence and enjoy better performance!