Looking for the best 31-spline axle parts to upgrade your vehicle’s performance? We’ve gathered the top 10 options to help you make the perfect choice for a smoother and more reliable ride.
Upgrading your vehicle’s performance starts with the right parts. Whether you’re fixing a Ford, Dodge, or Chrysler, 31-spline axle parts are key to smooth and reliable driving. We’ve gathered the best options to help you make the perfect choice.
From heavy-duty axles to precision-fit differentials, these parts are built to last. Discover how they can boost your ride’s strength and stability, making every drive better.
List of Top 10 31-Spline Axle Parts
| Image | Title | Best For | Price |
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9 Inch Trac-Loc Posi with 31 Splines Traction Lock Replacement for Ford All 9″ 31 Spline Axles F9-31-TLNF F9-31-POSI D4TZ4026A 542036 Vahaha |
This 9 Inch Trac-Loc Posi is perfect for Ford owners needing a reliable traction lock replacement. It’s easy to install and fits all 9″ 31 spline axles. |
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SR Performance 8.8 Inch 5 Lug Axles 31 Spline 1541H in High Manganese Steel Upgrade Fits Ford Mustang GT 2011-2014 / V6 2007-2009 / GT500 2005-2014 |
SR Performance 8.8 Inch 5 Lug Axles are perfect for Ford Mustang owners who want a strong and reliable upgrade. If you drive a 2011-2014 GT, 2007-2009 V6, or 2005-2014 GT500, these high manganese steel axles will give your car better performance and durability. |
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Speedway Motors 31 Spline Cut to Fit Natural Finish Racing Axles and Studs with a Zinc Finish, Fits Ford 9 Inch, Includes Steel Construction Press-In Wheel Studs |
This product is perfect for small shops and DIY enthusiasts who want to build their own custom rear end for a Ford 9-inch axle housing. It’s easy to use and allows you to create a custom width setup with corrosion-resistant parts. |
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Detroit Axle – 4WD Front CV Axle for 2001-2004 Dodge Dakota, 2001 2002 2003 Durango, CV Axle Shaft Assembly Replacement |
This CV axle is perfect for Dodge Dakota and Durango owners who need a reliable replacement for their 4WD vehicles. It’s ideal for those built after 9/12/00, ensuring a perfect fit and long-lasting performance. |
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Rear Axle Kit Fits Ford 9″ Diff 31 Spline 32″ Long |
This Rear Axle Kit is perfect for Ford owners who need a strong, reliable upgrade. It’s ideal for those with a 9-inch differential looking for durable, heat-treated axles that include everything needed for installation. |
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8.8″ Locker Replacement for Ford 8.8 differential with 31 spline axles 10 Bolts Includes Heavy-Duty Cross pin Shaft AKWH |
This 8.8″ Locker Replacement is perfect for Ford owners who need a reliable upgrade for their 8.8 differential. It’s ideal for those with 31 spline axles and 10 bolts, offering a heavy-duty solution for better performance. |
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Yukon Gear & Axle Dura Grip Rear Limited Slip Differential Positraction, 31 Spline, Compatible with 9.25″ 2010-Dwn Chrysler/Dodge/PLYM Axel, YDGC9.25-31-1 |
This Yukon Gear & Axle Dura Grip Rear Limited Slip Differential is perfect for drivers who want better control and traction in tough conditions. It’s ideal for trucks or cars with 9.25″ Chrysler axles and 31 splines, offering reliable performance and easy maintenance. |
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Detroit Axle – 4WD Front 2pc CV Axles for 01-04 Dodge Dakota, 01-03 Durango, 2 CV Axle Shafts Assembly 2001 2002 2003 2004 Replacement |
This product is perfect for owners of 2001-2004 Dodge Dakota or 2001-2003 Dodge Durango who need reliable replacement CV axles. It’s ideal for 4WD vehicles built after 9/12/00, offering a 10-year warranty for peace of mind. |
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Speedway Motors Short 31-Spline 9” Ford Cut-to-Fit Axle with Bearing, Big Bearing Ends, 5-Lug Bolt Patterns, 2.5” Offset, 3.150” Bearing, Strong Steel Build, Sold Individually |
This Speedway Motors axle is perfect for car enthusiasts who want to upgrade their Ford’s rear end. It’s great for street or track use and works with many wheel setups. |
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Yukon Gear & Axle (YP MINSF9-31) Mini Spool for Ford 9 Differential with 31-Spline Axle |
This Yukon Gear & Axle Mini Spool is perfect for Ford owners who need a reliable replacement part for their 9 Differential with 31-Spline Axle. It’s easy to install and built to last. |
Detailed Reviews
Discover the top 10 31-Spline Axle Parts, handpicked for performance, durability, and value. Each product is expert-reviewed and backed by customer feedback, ensuring you find the perfect fit for your vehicle. Whether you’re upgrading for strength, reliability, or affordability, this guide has you covered—read on to make the best choice for your needs.
1. 9 Inch Trac-Loc Posi with 31 Splines Traction Lock Replacement for Ford All 9″ 31 Spline Axles F9-31-TLNF F9-31-POSI D4TZ4026A 542036 Vahaha

Upgrade your Ford’s performance with the 9 Inch Trac-Loc Posi Traction Lock. This replacement part is designed for all 9″ 31 spline axles, ensuring a perfect fit. It’s a high-quality, easy-to-install solution for improved traction.
Made with premium materials, this Trac-Loc Posi Unit is tested for reliability. Buy with confidence and enjoy a 2-year warranty.
| Pros | Cons |
|---|---|
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Perfect For:
This 9 Inch Trac-Loc Posi is perfect for Ford owners needing a reliable traction lock replacement. It’s easy to install and fits all 9″ 31 spline axles.
Ready to Purchase?
2. SR Performance 8.8 Inch 5 Lug Axles 31 Spline 1541H in High Manganese Steel Upgrade Fits Ford Mustang GT 2011-2014 / V6 2007-2009 / GT500 2005-2014

Upgrade your Ford Mustang with the SR Performance 8.8 Inch 5 Lug Axles. These high-quality axles are made from 1541H High Manganese Steel Alloy, ensuring strength and durability. They fit 2011-2014 GT, 2007-2009 V6, and 2005-2014 GT500 models.
The 31 spline axles feature a 5 x 4.5″ five-lug design, providing a secure and reliable fit. With axle lengths of 32.810″ and 31.680″, they are perfect for your Mustang. The kit includes both driver and passenger side axles.
Get improved performance and peace of mind with these heavy-duty axles. The high manganese steel ensures long-lasting strength. Upgrade your Mustang today!
| Pros | Cons |
|---|---|
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Perfect For:
SR Performance 8.8 Inch 5 Lug Axles are perfect for Ford Mustang owners who want a strong and reliable upgrade. If you drive a 2011-2014 GT, 2007-2009 V6, or 2005-2014 GT500, these high manganese steel axles will give your car better performance and durability.
Ready to Purchase?
3. Speedway Motors 31 Spline Cut to Fit Natural Finish Racing Axles and Studs with a Zinc Finish, Fits Ford 9 Inch, Includes Steel Construction Press-In Wheel Studs

Speedway Motors racing axles are made of steel with a natural finish. They fit Ford 9-inch axle housings and let you build custom widths. Each axle is sold individually for small shops.
The steel studs have a zinc finish and are corrosion-resistant. They come in a box of 10 and are easy to install.
| Pros | Cons |
|---|---|
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Perfect For:
This product is perfect for small shops and DIY enthusiasts who want to build their own custom rear end for a Ford 9-inch axle housing. It’s easy to use and allows you to create a custom width setup with corrosion-resistant parts.
Ready to Purchase?
4. Detroit Axle – 4WD Front CV Axle for 2001-2004 Dodge Dakota, 2001 2002 2003 Durango, CV Axle Shaft Assembly Replacement

Detroit Axle offers a reliable CV axle replacement for specific Dodge models. This front CV axle fits 2001-2004 Dodge Dakota and 2001-2003 Durango, built after 9/12/00. It’s designed for 4WD vehicles only.
The kit includes one front left or right CV axle assembly. It has precise specifications: 20 13/16″ length, 29 inner spline, 31 outer spline, and a female inner shape. This ensures a perfect fit for your vehicle.
Each axle undergoes impact, wear, and fatigue testing for durability. It comes with a 10-year warranty, giving you peace of mind.
| Pros | Cons |
|---|---|
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Perfect For:
This CV axle is perfect for Dodge Dakota and Durango owners who need a reliable replacement for their 4WD vehicles. It’s ideal for those built after 9/12/00, ensuring a perfect fit and long-lasting performance.
Ready to Purchase?
5. Rear Axle Kit Fits Ford 9″ Diff 31 Spline 32″ Long

The Rear Axle Kit is a perfect fit for your Ford 9-inch differential. It’s 32 inches long and has 31 splines, making it strong and reliable.
This kit includes everything you need: a seal, studs, diff cover gasket, and lug nuts. It’s ready to install right out of the box.
With advanced heat-treating, this axle is stronger and more durable. It’s built to last for your rear, 5-lug setup.
| Pros | Cons |
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Perfect For:
This Rear Axle Kit is perfect for Ford owners who need a strong, reliable upgrade. It’s ideal for those with a 9-inch differential looking for durable, heat-treated axles that include everything needed for installation.
Ready to Purchase?
6. 8.8″ Locker Replacement for Ford 8.8 differential with 31 spline axles 10 Bolts Includes Heavy-Duty Cross pin Shaft AKWH

Upgrade your Ford 8.8 differential with this 8.8″ Locker Replacement. It’s designed for 31 spline axles and 10 bolts, ensuring a perfect fit.
This product includes a heavy-duty cross pin shaft for added strength. Professional installation is recommended for best results.
We stand behind our product with reliable support. If you face any issues, contact us, and we’ll help quickly.
| Pros | Cons |
|---|---|
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Perfect For:
This 8.8″ Locker Replacement is perfect for Ford owners who need a reliable upgrade for their 8.8 differential. It’s ideal for those with 31 spline axles and 10 bolts, offering a heavy-duty solution for better performance.
Ready to Purchase?
7. Yukon Gear & Axle Dura Grip Rear Limited Slip Differential Positraction, 31 Spline, Compatible with 9.25″ 2010-Dwn Chrysler/Dodge/PLYM Axel, YDGC9.25-31-1

Yukon Gear & Axle Dura Grip is a rear limited slip differential designed for smooth yet aggressive traction. It enhances handling and stability in demanding conditions, making it ideal for trucks and cars.
This differential fits 9.25″ Chrysler axles with 31 splines and works with all gear ratios. Its rebuildable design allows for easy repairs and upgrades, ensuring a longer lifespan.
High-quality materials, forged 4320 chromoly spider gears, and advanced engineering make this product durable and reliable. Proudly assembled in the USA, it’s a trusted choice for performance parts.
| Pros | Cons |
|---|---|
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Perfect For:
This Yukon Gear & Axle Dura Grip Rear Limited Slip Differential is perfect for drivers who want better control and traction in tough conditions. It’s ideal for trucks or cars with 9.25″ Chrysler axles and 31 splines, offering reliable performance and easy maintenance.
Ready to Purchase?
8. Detroit Axle – 4WD Front 2pc CV Axles for 01-04 Dodge Dakota, 01-03 Durango, 2 CV Axle Shafts Assembly 2001 2002 2003 2004 Replacement

Detroit Axle offers a reliable replacement for your vehicle’s CV axles. This 2-piece kit is designed for 4WD Dodge Dakota and Durango models from 2001 to 2004.
The front CV axles are built to last with a 10-year warranty. They feature precise specifications, ensuring a perfect fit and smooth performance. Easy installation and durable construction make this a great choice for your vehicle’s needs.
| Pros | Cons |
|---|---|
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Perfect For:
This product is perfect for owners of 2001-2004 Dodge Dakota or 2001-2003 Dodge Durango who need reliable replacement CV axles. It’s ideal for 4WD vehicles built after 9/12/00, offering a 10-year warranty for peace of mind.
Ready to Purchase?
9. Speedway Motors Short 31-Spline 9” Ford Cut-to-Fit Axle with Bearing, Big Bearing Ends, 5-Lug Bolt Patterns, 2.5” Offset, 3.150” Bearing, Strong Steel Build, Sold Individually

Upgrade your ride with the Speedway Motors Short 31-Spline 9” Ford Cut-to-Fit Axle. Built tough from high-quality steel, it ensures lasting strength for street or track use. Easy to install, it comes with a pre-pressed bearing and retainer.
Versatile and reliable, it fits multiple bolt patterns and spline options. Customize your build with the perfect fit for your rear end. Sold individually for flexibility.
| Pros | Cons |
|---|---|
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Perfect For:
This Speedway Motors axle is perfect for car enthusiasts who want to upgrade their Ford’s rear end. It’s great for street or track use and works with many wheel setups.
Ready to Purchase?
10. Yukon Gear & Axle (YP MINSF9-31) Mini Spool for Ford 9 Differential with 31-Spline Axle

The Yukon Gear & Axle Mini Spool is a reliable auto part. It fits Ford 9 Differentials with 31-spline axles. This product ensures smooth performance.
It comes in a compact package, measuring 14.732 cms (L) x 13.716 cms (W) x 13.716 cms (H). Each package contains one mini spool, made in Pakistan.
This mini spool is easy to install. It’s a great choice for vehicle upgrades. Trust Yukon for quality and durability.
| Pros | Cons |
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Perfect For:
This Yukon Gear & Axle Mini Spool is perfect for Ford owners who need a reliable replacement part for their 9 Differential with 31-Spline Axle. It’s easy to install and built to last.
Ready to Purchase?
Buying Guide
Upgrading your vehicle’s performance starts with the right parts. 31-spline axle parts are key for smooth and reliable driving. We’ve gathered the best options to help you choose wisely.
Buying 31-spline axle parts can boost your ride’s strength and stability. Whether you’re fixing a Ford, Dodge, or Chrysler, these parts are built to last. Here’s what to consider for the perfect upgrade.
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Vehicle Compatibility:
Make sure the part fits your make and model. Check spline count, axle length, and bolt patterns for a perfect match. -
Material Quality:
Look for high-quality materials like manganese steel or chromoly. These ensure durability and long-lasting performance. -
Installation Ease:
Choose parts that are easy to install. Some may need professional help, so plan accordingly. -
Warranty:
A good warranty gives peace of mind. Look for options with 2-year or 10-year coverage. -
Performance Needs:
Decide if you need heavy-duty parts for racing or reliable ones for daily use. Match the part to your driving style. -
Price and Value:
Compare prices to find the best value. Don’t sacrifice quality for a lower cost. -
Brand Reputation:
Trust well-known brands like Yukon Gear or Detroit Axle. They’re known for quality and reliability.
With these factors in mind, you’ll find the perfect 31-spline axle parts for your vehicle. Upgrade with confidence and enjoy a smoother, stronger ride.