HAISLEY MACHINE HMR IS 138XL INPUT SHAFT 1-3/8 X 10 XL

Product Description

Upgrade the durability and torque capacity of your NV4500 transmission with the HAISLEY MACHINE HMR IS 138XL INPUT SHAFT 1-3/8 X 10 XL. Designed specifically for high-horsepower diesel trucks and competition builds, this extra-long input shaft is engineered to support demanding 3-disc clutch systems used in sled pulling, drag racing, and extreme towing applications.

Manufactured from premium alloy steel and precision machined for strength and reliability, this heavy-duty input shaft helps eliminate common failure points found in factory NV4500 shafts when exposed to high torque loads. The XL length configuration provides the proper engagement and spacing required for advanced clutch systems used in high-performance diesel drivetrains.

Whether you're building a high-horsepower Cummins street truck, a competitive pulling truck, or a heavy-duty tow rig, the Haisley Machine HMR IS 138XL delivers the durability and performance needed to keep your drivetrain alive under extreme power levels. Built by one of the most trusted names in diesel motorsports, this component is designed to withstand the abuse that high-torque diesel engines generate.

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Fitment

• NV4500 5-Speed Manual Transmission
• Dodge Ram Cummins manual transmission applications
• Performance clutch setups using 1-3/8" x 10 spline
• Required for many 3-disc competition clutch systems
• Commonly used in high horsepower diesel builds and pulling trucks

Features

• 1-3/8" x 10 spline configuration
• Extra-long shaft design for 3-disc clutch compatibility
• Precision machined for NV4500 transmissions
• Designed for extreme torque and high horsepower applications
• Heavy-duty alloy steel construction
• Built for sled pulling, drag racing, and high performance diesel trucks

FAQ

What transmissions does the HMR IS 138XL input shaft fit?

This input shaft is designed for NV4500 manual transmissions commonly used in Dodge Ram Cummins diesel trucks.

Why is an XL input shaft required for a 3-disc clutch?

Three-disc clutch systems require additional shaft length to properly engage the clutch assembly and maintain correct spacing inside the bellhousing.

Is this input shaft stronger than the factory NV4500 shaft?

Yes. The Haisley Machine shaft is engineered for high horsepower diesel applications and is designed to prevent failures commonly seen with stock shafts under extreme torque loads.

Is this suitable for competition trucks?

Yes. This shaft is commonly used in sled pulling and racing applications where high torque and clutch loads can damage factory components.

Do I need to upgrade my clutch to use this shaft?

This shaft is specifically intended for performance clutch systems using a 1-3/8" x 10 spline configuration, including many triple-disc clutch setups.

Specifications