National 710597 Transfer Case Shift Shaft Seal

Overview of National Transfer Case Shift Shaft Seal 710597

The National 710597 transfer case shift shaft seal is engineered to provide reliable sealing performance for a variety of trucks and SUVs. Designed with durable polyacrylate material, this oil seal helps maintain proper lubrication and prevents fluid leaks in transfer cases of select Chevrolet, GMC, Dodge, Jeep, and other vehicles.

• Inside diameter: 0.750 inch (19.05 mm)
• Outside diameter: 1.008 inch (25.6 mm)
• Thickness/width: 0.225 inch (5.72 mm)
• Sealing material: Polyacrylate for enhanced durability
• Compatible with housing bore size: 1.000 inch (25.4 mm)

Detailed Product Description and Specifications

This transfer case shift shaft seal from National, part number 710597, is part of the 710500 series and is specifically designed to fit transfer cases requiring a 0.750 inch (19.05 mm) shaft diameter. The polyacrylate sealing material offers resistance to heat and wear, ensuring a tight seal around the shift shaft to prevent oil leakage. With an outside diameter of 1.008 inches (25.6 mm) and a thickness of 0.225 inches (5.72 mm), this seal fits precisely into a 1.000 inch (25.4 mm) housing bore, maintaining the integrity of the transfer case assembly.

Compatible Vehicles and Applications

This transfer case shift shaft seal is compatible with a wide range of vehicles, including Chevrolet Silverado 1500, GMC Sierra 1500, Dodge Ram 1500, Jeep Grand Cherokee, Cadillac Escalade, and Isuzu models. It is suitable for use in transfer cases of trucks and SUVs such as the Chevrolet Avalanche, Blazer, Suburban, Tahoe, and Jeep Wrangler JK. The part number 710597 ensures proper fitment for these models, supporting reliable transfer case operation.

Common Issues Addressed by This Seal

• Prevents oil leaks from the transfer case shift shaft area
• Reduces contamination of transfer case fluid by dirt and debris
• Maintains proper lubrication for smooth shifting performance
• Helps avoid premature transfer case wear and damage
• Eliminates noise and vibration caused by fluid loss

Installation Notes and Tips

• Ensure the housing bore is clean and free of debris before installation
• Use appropriate tools to press the seal evenly into the bore without damage
• Verify shaft diameter matches the 0.750 inch specification for proper sealing
• Inspect the transfer case shift shaft for wear or damage prior to seal replacement
• Follow vehicle manufacturer torque specifications when reassembling components

Quality Assurance and Warranty Information

National transfer case seals are manufactured to meet OEM standards for fit, form, and function. The polyacrylate material provides reliable sealing performance under typical operating conditions. While specific warranty details may vary, National products generally come with a limited warranty against defects in material and workmanship. Using part number 710597 ensures compatibility and durability for your transfer case maintenance needs.