1. Car & Truck Manual Transmission Parts Deals
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  3. NATIONAL SX-8GCP

NATIONAL SX-8GCP Transmission Shaft Seal Manual Gaskets

fits model: Tj, 1000. make: Gmc. year: 1966.

Sx-8gcp National Transmission Shift Shaft Seal For 1966 Gmc 1000 Manual Gaskets Tj

( Brand: National ), ( Manufacturer Part Number: SX-8GCP ), ( Type: Manual Transmission Shift Shaft Seal ), ( Ipn: C321 16-66 ), ( 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 Transmission Shift Shaft Seal For Gmc Manual Gaskets fits TJ 1000 1966

Introducing the National SX-8GCP Transmission Shaft Seal, specifically designed for the 1966 GMC 1000 manual transmission system. This premium seal is an essential component for maintaining the integrity of your vehicle's powertrain, ensuring a reliable and efficient driving experience.

Manufactured by National Sealing, this high-quality shaft seal is engineered to provide an optimal seal between the transmission shaft and the gearcase. It is made from a proprietary elastomeric material that offers superior resistance to both compression and tension loads, ensuring a tight and effective seal under even the most demanding driving conditions.

The SX-8GCP Transmission Shaft Seal is also designed to be compatible with various transmission fluids, including both conventional and synthetic types. This versatility makes it an excellent choice for those who prefer to use high-performance lubricants in their vehicles.

Installing this seal is a straightforward process, making it a popular choice among DIY enthusiasts and professional mechanics alike. It is available as a standalone part, allowing you to replace it quickly and easily without having to purchase an entire gasket kit.

The National SX-8GCP Transmission Shaft Seal is more than just a replacement part; it is an investment in the longevity and performance of your 1966 GMC 1000. By ensuring a tight seal between the transmission shaft and gearcase, you can prevent potential leaks and reduce the risk of costly repairs down the line.

In summary, the National SX-8GCP Transmission Shaft Seal is a must-have component for any 1966 GMC 1000 owner seeking to maintain the optimal performance and reliability of their vehicle's powertrain. Its high-quality design, compatibility with various transmission fluids, and straightforward installation process make it an excellent choice for those who demand the best from their vehicles.

Buying a National SX-8GCP Transmission Shaft Seal for a 1966 GMC 1000: Pros, Cons, and Conclusion

The National SX-8GCP transmission shaft seal is a crucial component for the manual transmission system in a 1966 GMC 1000. Replacing the old or damaged seal can prevent various potential issues, such as transmission fluid leaks and power loss. In this context, let's discuss the pros and cons of buying this specific seal and provide an ultimate recommendation.

Pros:

1. High-quality seal: National is a reputable brand in the automotive industry, and the SX-8GCP seal is designed to provide a perfect seal for the transmission shaft, preventing leaks and ensuring efficient power transfer.

2. OEM-replacement: This seal is an exact match for the original equipment used in 1966 GMC 1000s, ensuring a seamless fit and function.

3. Reliability: National Seals are known for their durability and longevity, providing peace of mind for vehicle owners.

Cons:

1. Cost: Compared to some aftermarket alternatives, the National SX-8GCP seal may be more expensive. However, the higher cost is often justified by the superior quality and reliability.

2. Availability: Depending on your location and the availability of auto parts stores, it may take some time to locate and purchase this specific seal.

Conclusion:

When considering purchasing the National SX-8GCP transmission shaft seal for your 1966 GMC 1000, it is essential to weigh the pros and cons. While the cost may be higher than some aftermarket alternatives, the high-quality, OEM-replacement design, and reliability make it an excellent investment for your vehicle.

Recommendation:

If you are looking for a trusted and reliable seal to replace the old or damaged transmission shaft seal in your 1966 GMC 1000, we recommend purchasing the National SX-8GCP seal. Despite the potential higher cost, you will benefit from a superior quality product that will provide efficient power transfer and prevent leaks for years to come.

Details:

National Transmission Shift Shaft Seal for 1966 GMC 1000 Manual Gaskets Tj: Status: In Stock.

part #: sx8gcp prices

  • $12.21-$22.07

specifications manutransmission:

  • for models: Tj, 1000
  • for makes: Gmc
  • for years: 1966
  • brand: National
  • mpn: Sx-8gcp
  • type: Manual Transmission Shift Shaft Seal
  • ipn: C321 16-66
  • 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

shipping manutransmission:

  • transit: 3-6 Days
  • class: Standard, Expedited
  • type: Fixed
  • cost: $0.00
  • service: Standard, Expedited

payments manutransmission:

  • other
  • credit card: Mastercard
  • wallet: Google-pay

returns manutransmission:

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

seller manutransmission:

  • # reviews: 629872
  • rating: 99.5%
  • city: Indianapolis, Indiana

general manutransmission:

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

offer manutransmission:

  • options: Ship-to-home
  • sold: 0
  • availability: In Stock
  • started: March 7, 2026
  • quantity: 3
for models: tj, 1000, for makes: gmc, for years: 1966, type: manual transmission shift shaft seal, 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,
category: auto parts > car truck parts accessories > transmission drivetrain > manual transmission parts, sku: 11509962279708603,

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