2-40-2021 1.375 in x 16 Spline Stub 1310-1350 Series fits 2.0" x 0.120 Tube
Technical Data
Upgrade Your Driveline with the 1310-1350 Series 1.375 in x 16 Spline Stub 2-40-2021
The 2-40-2021 Spline Stub is a high-strength, precision-machined component engineered for 1310 and 1350 series drivelines. Its 1.375-inch diameter with 16 splines ensures a secure, exact fit, while the robust construction handles high torque loads in off-road, agricultural, and performance driveline applications.
Made from heat-treated steel and coated for corrosion resistance, this spline stub is designed to withstand heavy-duty use without distortion or failure. Its precise dimensions, including a 5.188" end-of-spline-to-weld and 2.250" spline length, guarantee smooth power transfer, reduced driveline vibration, and reliable performance.
Perfect for trucks, SUVs, Jeeps, tractors, and custom driveline setups, the 2-40-2021 Spline Stub is ideal for both replacements and upgrades. Engineered to meet or exceed OEM specifications, it delivers consistent, dependable operation even in the harshest conditions.
Features and Benefits:
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High-Strength Heat-Treated Steel – Maximum durability and wear resistance for heavy-duty applications.
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1.375" Diameter x 16 Splines – Ensures precise, secure fit with compatible yokes and shafts.
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Engineered for High Torque Loads – Handles performance and off-road demands without distortion.
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Corrosion-Resistant Coating – Protects against rust and environmental damage.
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Optimized Dimensions – Includes 5.188" end-of-spline-to-weld, 2.250" spline length, and 4.625" end-of-spline-to-radius for smooth integration.
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1310-1350 Series Compatibility – Works with a wide range of off-road, agricultural, and industrial drivelines.
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Smooth Power Transfer – Reduces vibration and noise for better driveline performance.
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OEM-Level Fitment – Hassle-free installation with tight tolerances.
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1-Year Warranty – Peace of mind with manufacturer-backed coverage.
Technical Specifications:
| Specification | Details |
|---|---|
| Part Number | 2-40-2021 |
| Series | 1310-1350 |
| Spline Diameter | 1.375 in (35 mm) |
| Number of Splines | 16 |
| Tube Size | 2.000 in x 0.120 in (50.8 mm x 3 mm) |
| End of Spline to Weld (K) | 5.188 in (132 mm) |
| Length of Spline (L) | 2.250 in (57 mm) |
| End of Spline to Radius (R) | 4.625 in (117.5 mm) |
| Butt Diameter | 1.771 in (45 mm) |
| Material | Heat-Treated Steel |
| Finish | Corrosion-Resistant |
| Compatible Equipment Type | Automotive, Agricultural, SUV, Truck |
| Warranty | 1 Year |
Vehicle / Equipment Compatibility:
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Off-Road Vehicles: Jeeps, trucks, SUVs with 1310-1350 series drivelines
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Agricultural Equipment: Tractors and machinery with 1310 or 1350 shafts
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Heavy-Duty / Performance Applications: Custom driveline builds and high-performance setups
What’s Included:
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1 x 2-40-2021 1.375 in x 16 Spline Stub 1310-1350 Series
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Installation Instructions
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1-Year Warranty Card
REVIEWS
Installed this spline stub on my Jeep’s 1350 series driveline. Fit perfectly and transfers power smoothly. Very strong steel, handles off-road torque with no issues.
Brian R.
Boise, ID
Perfect fit for my 2.0" tube driveline. Smooth operation and very durable. Ideal for high-performance and heavy-duty builds. Highly recommend this spline stub!
Emily M.
Fayetteville, NC
Specifications
Fitment Data
• Engineered for precision compatibility with high-performance builds.
• Tested under extreme mechanical stress for guaranteed structural integrity.
Use the Riot Vehicle Finder to verify exact sub-model compatibility.
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