SKF 6308-J Manual Transmission Main Shaft Pilot Bearing - Rear, Rear Forward or Rear Rearward

Reliable Manual Transmission Main Shaft Pilot Bearing

The SKF 6308-J manual transmission main shaft pilot bearing is engineered to provide precise fitment and dependable performance for select Ford and Nissan vehicles. Designed with exact dimensions, this bearing supports smooth operation of the transmission main shaft, ensuring optimal drivetrain function.

• Inside diameter: 1.574 inches for accurate shaft alignment
• Width: 0.905 inches to fit securely within the transmission housing
• Outside diameter: 3.543 inches for proper seating and stability
• Compatible with Ford F-250, F-250 Super Duty, F-350, and Nissan 720 models
• Part number 6308-J for easy identification and replacement

Detailed Bearing Specifications and Performance

The SKF 6308-J pilot bearing is manufactured to precise tolerances, ensuring a snug fit on the manual transmission main shaft. Its 1.574-inch inside diameter matches the shaft size, while the 0.905-inch width provides adequate surface contact to reduce wear. The 3.543-inch outside diameter allows the bearing to seat firmly within the transmission housing, minimizing vibration and enhancing transmission longevity. This bearing is designed to withstand the stresses of manual transmission operation in heavy-duty Ford trucks and Nissan 720 pickups.

Compatible Vehicles and Applications

This manual transmission main shaft pilot bearing is compatible with the following vehicles:

• Ford F-250 (including Super Duty models)
• Ford F-350
• Nissan 720

It is intended for use in manual transmission systems where the main shaft requires stable support to maintain alignment and reduce friction.

Common Issues Addressed by the SKF 6308-J Bearing

• Excessive play or wobble in the transmission main shaft
• Noise or vibration originating from the pilot bearing area
• Premature wear of transmission components due to misalignment
• Difficulty in shifting gears caused by bearing failure
• Transmission overheating related to increased friction

Installation Notes and Tips

Ensure the transmission main shaft and housing are clean and free of debris before installing the SKF 6308-J bearing. Use appropriate tools to press the bearing evenly into place without applying excessive force that could damage the bearing or housing. Verify the bearing is fully seated and rotates smoothly on the shaft before reassembling the transmission.

Quality Assurance and Warranty

SKF manufactures the 6308-J bearing to meet industry standards for durability and precision. While specific warranty details are not provided, SKF products typically undergo rigorous quality control to ensure reliable performance in automotive applications.