6.5-53-171 – Stub & Midship Shaft – 46 X 2.350 Splines – Bearing Dia 2.362″ – Tube Dia Wall 4.500X0.134

6.5-53-171 is a crucial Stub & Midship Shaft that plays a vital role in transmitting torque from the transmission to the differential. If you’re experiencing vibrations or noise during acceleration, this component is often a suspect. A worn or damaged midship shaft can lead to misalignment, causing excessive wear on U-joints and other driveline components.

This specific shaft features 46 X 2.350 splines, which must match your application precisely to ensure proper fitment and torque handling. The bearing diameter of 2.362 inches is designed to provide a robust connection, minimizing play and enhancing durability. The tube diameter wall of 4.500 X 0.134 inches contributes to the overall strength of the assembly, allowing it to handle the stresses of high-performance applications.

When diagnosing driveline issues, consider the following:

• Check for any unusual vibrations that may indicate a failing shaft.
• Inspect the spline count and diameter to ensure compatibility with your transmission.
• Verify the end-to-weld measurement of 5.312 inches to ensure proper length.
• Look for signs of wear on the bearing area, which can lead to failure if not addressed.
• Ensure proper phasing and balance during installation to prevent future issues.

Replacing a worn or damaged midship shaft with the 6.5-53-171 will restore proper function, ensuring smooth power delivery and extending the life of your driveline components.