National JM205110 Manual Transmission Input Shaft Race - Front Inner or Front Outer

Overview of National JM205110 Manual Transmission Input Shaft Race

The National JM205110 manual transmission input shaft race is designed specifically for Dodge D250, D350, W250, and W350 models. This taper bearing cup plays a critical role in maintaining smooth transmission operation by supporting the input shaft within the manual transmission assembly.

• Cup Bore Diameter: 3.5430 inches (89.9920 mm)
• Cup Length: 0.9060 inches (23.0120 mm)
• Cup Radius: 0.1000 inches (2.5400 mm)
• Part Type: Manual Transmission Input Shaft Race (Taper Bearing Cup)
• Compatible with Dodge D250, D350, W250, and W350 models

Detailed Product Description and Specifications

The JM205110 input shaft race from National is engineered to precise dimensions to ensure proper fit and function within the manual transmission system. The taper bearing cup features a cup bore diameter of 3.5430 inches (89.9920 mm), which accommodates the input shaft securely. Its cup length of 0.9060 inches (23.0120 mm) and cup radius of 0.1000 inches (2.5400 mm) are designed to provide optimal bearing surface contact, reducing wear and extending transmission life. This component is essential for maintaining the alignment and smooth rotation of the input shaft in Dodge D250, D350, W250, and W350 trucks.

Applications and Common Issues Addressed

• Prevents premature wear of manual transmission input shaft bearings
• Eliminates input shaft play and vibration
• Restores proper bearing surface contact in manual transmissions
• Addresses noise and rough shifting caused by worn bearing cups
• Supports transmission longevity in Dodge D250, D350, W250, and W350 models

Installation Notes and Tips

• Ensure the transmission is clean and free of debris before installation
• Use proper tools to press the taper bearing cup into place without damage
• Verify correct orientation of the cup bore and radius during installation
• Check for proper fit with the input shaft to avoid misalignment
• Consult vehicle service manual for torque specifications and detailed procedures

Quality Assurance and Warranty Information

National manufactures the JM205110 input shaft race to meet OEM specifications, ensuring reliable performance and durability. This part undergoes strict quality control to maintain dimensional accuracy and material integrity. While specific warranty details may vary, National typically offers coverage against manufacturing defects to provide confidence in the product's longevity and function.