3642-252 – Stub & Midship Shaft – 25 x 0.804 Splines – Butt Dia 2.375″ – Tube Dia Wall 2.500X0.065

The 3642-252 Stub & Midship Shaft is a critical component for transferring torque efficiently in vehicles like the EQUINOX, TORRENT, CHEVROLET, and PONTIAC. This shaft features a unique configuration with 25 x 0.804 splines, a butt diameter of 2.375 inches, and a tube diameter of 2.500 inches. The specific spline count and dimensions are essential for ensuring proper fitment and functionality in your driveline system.

Using the 3642-252 in the wrong application can lead to severe performance issues. For instance, if you attempt to use a shaft with a different spline count or diameter, you risk improper engagement with the U-joint, which can cause vibrations or even catastrophic failure. The 1.020-inch spline length and 6.621-inch end-to-weld measurement are tailored for optimal torque transfer and stability.

When installing the 3642-252, keep these points in mind:

• Verify the spline count and diameter match your application.
• Ensure the tube wall thickness of 0.065 inches is appropriate for your torque requirements.
• Check for proper phasing marks during installation to prevent vibrations.
• Torque all bolts to the manufacturer’s specifications for secure fastening.
• Balance the assembly if any vibrations are detected post-installation.

This Stub & Midship Shaft is engineered to handle the demands of your driveline, ensuring reliable performance and longevity.