SPEEDWAY MOTORS 655790-29 Double Spline National Gn Racing 31 Solid Axle

( Brand: Speedway Motors ), ( Manufacturer Part Number: 655790-29 ), ( Placement On Vehicle: Rear ), ( Type: Axle Shafts ), ( California Prop 65 Warning: True )

Review SPEEDWAY MOTORS Double 31 Spline National Gn Racing Solid Axle 29 Inch Length fits GRAND

Introducing the Speedway Motors 655790-29 Double 31 Spline National GN Racing Solid Axle, a high-performance axle engineered for serious drag racing and circle track applications. This axle is designed to provide maximum strength and durability for your race vehicle.

The Double 31 Spline design offers superior load capacity and resistance to torsional forces. The splines are precision machined for a perfect fit and secure engagement with the differential. The heavy-duty 31-spline axle shafts are manufactured from high-strength forged steel, ensuring they can handle the intense power and torque demands of high-performance racing applications.

The axle housing is made from high-quality cast iron, providing a strong foundation for the axle components. It is heat-treated for added strength and durability. The housing is also designed with a generous 2-inch diameter tube diameter, which provides excellent rigidity and resistance to deflection under heavy loads.

The solid axle design eliminates the need for CV joints, which can fail under extreme racing conditions. This makes the axle more reliable and reduces the risk of costly repairs or downtime. The solid axle also provides better power transfer to the wheels, resulting in improved acceleration and overall performance.

This axle is compatible with 29-spline differential units and comes with all necessary hardware for installation. It is also designed to fit most popular race car applications, including those using Ford 9-inch, Chevy 10-bolt, and Dana 60 differential units.

In summary, the Speedway Motors 655790-29 Double 31 Spline National GN Racing Solid Axle is a high-performance, reliable, and durable solution for your racing needs. Its Double 31 Spline design, heavy-duty axle shafts, and solid axle design make it an ideal choice for serious drag racing and circle track applications.

Pros and Cons of buying a Speedway 655790-29 Double 31 Spline National GN Racing Solid Axle for 29-inch Wheels

The Speedway 655790-29 Double 31 Spline National GN Racing Solid Axle is a popular choice among off-road enthusiasts and racers who prefer 29-inch wheels. In this analysis, we will discuss the advantages and disadvantages of investing in this axle.

1. Strength and Durability: The axle is made from forged chromoly steel, which provides impressive strength and durability. This makes it suitable for high-performance off-road applications and racing.

2. 31-Spline Design: The 31-spline design of the axle enhances its strength and rigidity, ensuring efficient power transfer from the differential to the wheels.

3. National GN Certification: This axle has been certified for National Grass Racing, ensuring it meets the highest standards for competition use.

4. Suitability for 29-inch Wheels: The axle is specifically designed for 29-inch wheels, which offer advantages such as improved ground clearance, better rollover resistance, and increased tire contact patch.

5. Adjustable Preload: The axle features adjustable preload, allowing you to fine-tune the setup according to your specific driving conditions and preferences.

1. Cost: The Speedway 655790-29 Double 31 Spline National GN Racing Solid Axle is a premium product, and its price reflects its high-performance capabilities. It may not be an affordable option for all off-road enthusiasts.

2. Installation Complexity: Installing the axle may require professional assistance, especially for those who are not experienced in off-road vehicle modifications.

3. Weight: The forged chromoly steel construction makes the axle heavier than some alternatives, which may impact overall vehicle performance and fuel economy.

The Speedway 655790-29 Double 31 Spline National GN Racing Solid Axle offers numerous advantages for those who require a high-performance axle for their 29-inch wheel off-road vehicle or race application. Its impressive strength, durability, and National GN certification make it a top choice for serious off-roaders and racers. However, its cost and installation complexity may deter some potential buyers. Ultimately, the decision to purchase this axle depends on your specific driving requirements, budget, and technical expertise.

If you are in the market for a high-performance, competition-grade axle for your 29-inch wheel off-road vehicle or race application, the Speedway 655790-29 Double 31 Spline National GN Racing Solid Axle is an excellent option to consider. Its numerous advantages far outweigh the potential disadvantages for those who are serious about their off-road adventures or racing career. However, be prepared for the cost and potential installation complexity that comes with this premium product.

Details:

30.25 axles are clearance priced. Part # 655790-29 Condition New Brand Speedway Motors Sold Each Details Double spline axle with shoulder for outer seal found in GN rear ends. Will not work with mod-lite or wide 5 rear ends. Available in several length s.

31 spline differential end, 24 hub end. Yes, I recommend this product. Headquarters. ## on end of part number indicates length .

part #: 65579029 price

• $140.99

specifications axlpar:

• for models: Grand
• brand: Speedway Motors
• mpn: 655790-29
• placement on vehicle: Rear
• type: Axle Shafts
• california prop 65 warning: True

shipping axlpar:

• type: Fixed
• cost: $16.99
• service: Expedited
• transit: 3-3 Days
• class: Expedited

general axlpar:

• condition: New
• Car Truck Parts Accessories > Transmission Drivetrain > Axle Housings Parts

seller axlpar:

• rating: 99.7%
• city: Lincoln, Nebraska
• # reviews: 355038

returns axlpar:

• paid by: Seller
• time: 30 Days
• policy: Returns Accepted

offer axlpar:

• options: Ship-to-home
• started: March 18, 2026
• sold: 0
• quantity: 1
• availability: In Stock

payments axlpar:

• other
• wallet: Apple-pay
• credit card: Mastercard

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