NATIONAL C578 Transmission Shaft Seal Manual Gaskets Xi 9-63

( Brand: National ), ( Type: Manual Transmission Shift Shaft Seal ), ( Ipn: C578 9-63 ), ( Item Length: 2.000 ), ( Manufacturer Warranty: 1 Year ), ( Placement On Vehicle: Transmission Gaskets Sealing Systems ), ( Core Charge: Free No Core Charge ), ( Fitment Type: Direct Replacement ), ( Bundle Description: 1 Pc Genuine National Manual Transmission Shift Shaft Seal )

Review NATIONAL 9-63 Transmission Shift Shaft Seal For Gmc Manual Gaskets Xi fits 2500 1966

Introducing the National C578 9-63 transmission shaft seal, specifically designed for the 1966 GMC 2500 manual transmission. This premium quality seal is essential for maintaining the integrity of your vehicle's transmission system.

The C578 9-63 transmission shaft seal is a critical component that prevents transmission fluid from leaking out of the shaft area. Made from high-quality materials, this seal provides superior sealing performance and durability. The seal features a flexible, yet strong design that can effectively withstand the high pressures and temperatures inside the transmission.

The seal is specifically engineered to fit the 1966 GMC 2500 manual transmission, ensuring a perfect fit and easy installation. This seal is part of the gasket set Xi, which includes other essential gaskets required for a complete transmission overhaul.

The National C578 9-63 transmission shaft seal is an excellent choice for do-it-yourself enthusiasts and professional mechanics alike. By using this seal, you can restore the sealing integrity of your transmission system and ensure that your vehicle continues to perform at its best.

In summary, the National C578 9-63 transmission shaft seal is a must-have component for any 1966 GMC 2500 manual transmission owner. Its superior sealing performance, durability, and precise fit make it an essential addition to your vehicle's maintenance regimen. By investing in this high-quality seal, you can save yourself the cost and inconvenience of transmission fluid leaks and ensure that your vehicle remains reliable and efficient on the road.

Buying a National C578 9-63 transmission shaft seal for a 1966 GMC 2500 manual transmission comes with both advantages and disadvantages. Here's a detailed analysis:

1. OEM Quality: This seal is an original equipment manufacturer (OEM) part, which means it is designed and manufactured by the same company that originally produced the part for the GMC 2500. This ensures a perfect fit and optimal performance.

2. Durability: OEM parts are usually of high quality and can last longer than aftermarket parts. This seal is likely to provide reliable service for an extended period.

3. Peace of Mind: By using an OEM part, you can have confidence that you are using a genuine part that will function properly and meet the original specifications of your vehicle.

1. Cost: OEM parts are generally more expensive than aftermarket parts. The price of this seal may be higher than aftermarket alternatives.

2. Availability: OEM parts may not be readily available at local auto parts stores or online marketplaces. You may need to order it directly from the manufacturer or an authorized dealer.

3. Time: Ordering an OEM part directly from the manufacturer or an authorized dealer can take longer than purchasing an aftermarket part from a local store or online retailer.

The National C578 9-63 transmission shaft seal for a 1966 GMC 2500 manual transmission is an OEM part that offers the benefit of a perfect fit, durability, and peace of mind. However, it comes at a higher cost and may take longer to acquire compared to aftermarket alternatives. Ultimately, the decision to buy this part depends on your budget, time constraints, and preference for genuine OEM parts.

If you prioritize the use of genuine OEM parts and are willing to pay a higher price and wait for its arrival, then buying the National C578 9-63 transmission shaft seal is a good choice. However, if you are on a tight budget or need the part urgently, you may consider purchasing an aftermarket alternative from a local auto parts store or online retailer.

Details:

National Transmission Shift Shaft Seal for 1966 GMC 2500 Manual Gaskets xi: Status: In Stock.

specifications manutransmission:

• for models: 2500
• for makes: Gmc
• for years: 1966
• brand: National
• type: Manual Transmission Shift Shaft Seal
• ipn: C578 9-63
• item length: 2.000
• manufacturer warranty: 1 Year
• placement on vehicle: Transmission Gaskets Sealing Systems
• core charge: Free No Core Charge
• fitment type: Direct Replacement
• bundle description: 1 Pc Genuine National Manual Transmission Shift Shaft Seal

general manutransmission:

• condition: New
• Car Truck Parts Accessories > Transmission Drivetrain > Manual Transmission Parts

seller manutransmission:

• rating: 99.5%
• city: Indianapolis, Indiana
• # reviews: 631298

offer manutransmission:

• options: Ship-to-home
• availability: In Stock
• started: March 10, 2026
• quantity: 3
• sold: 0

returns manutransmission:

• paid by: Seller
• policy: Returns Accepted
• time: 30 Days

payments manutransmission:

• credit card: Discover
• wallet: Apple-pay
• other

shipping manutransmission:

• cost: $0.00
• service: Standard, Expedited
• type: Fixed
• class: Standard, Expedited
• transit: 2-6 Days

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