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  3. NATIONAL SX-FDN1

NATIONAL SX-FDN1 Transfer Shaft Seals Tr

fits model: K25, K2500. make: Gmc. year: 1969–1974.

Sx-fdn1 National 2 Pc Transfer Case Shift Shaft Seals For 1969-1974 Gmc K25 K2500 Tr

( Brand: National ), ( Manufacturer Part Number: SX-FDN1 ), ( Type: Transfer Case Shift Shaft Seal ), ( Ipn: C658 28-51 ), ( Item Length: 2.000 ), ( Manufacturer Warranty: 1 Year ), ( Placement On Vehicle: Transfer Case Gaskets Sealing Systems ), ( Compatible Model: K25/k2500 Pickup ), ( Compatible Year: 1974 1973 1972 1971 1970 1969 ), ( Core Charge: Free No Core Charge ), ( Fitment Type: Direct Replacement ), ( Bundle Description: 2 Pc Genuine National Transfer Case Shift Shaft Seal Kit )

Review NATIONAL Pc Transfer Case Shift Shaft Seals For Gmc Tr fits K25 K2500 1969–1974

Introducing the National SX-FDN1 transfer shaft seals, specifically designed for 1969-1974 GMC K25 and K2500 trucks. These seals are an essential component of your vehicle's drivetrain system, responsible for preventing the transfer of power from the transmission to the driveshaft while also keeping out contaminants such as water, dirt, and debris.

The SX-FDN1 transfer shaft seals are manufactured using high-quality materials that ensure a perfect fit and long-lasting performance. Each seal is engineered to meet or exceed OEM specifications, providing you with the confidence and peace of mind that comes with a reliable and genuine replacement part.

The outer lip of the seal features a robust design that effectively seals the transfer shaft opening, preventing any unwanted leakage. The inner lip of the seal, on the other hand, is engineered to provide a snug fit against the transfer case shaft, ensuring a positive seal and minimizing any potential for power loss or contaminant intrusion.

The National SX-FDN1 transfer shaft seals are easy to install, making this an ideal solution for DIY enthusiasts and professional mechanics alike. Each seal comes complete with all necessary hardware, making installation a straightforward process.

Additionally, these seals are designed to provide excellent resistance to the harsh conditions that your GMC K25 or K2500 truck's drivetrain system may encounter. Whether you're tackling rough terrain or dealing with extreme temperatures, you can trust that the National SX-FDN1 transfer shaft seals will stand up to the challenge and keep your vehicle running smoothly.

So, if you're looking for a reliable and durable replacement transfer shaft seal for your 1969-1974 GMC K25 or K2500 truck, look no further than the National SX-FDN1 transfer shaft seals. Order yours today and experience the difference that comes with using a high-quality, OEM-engineered replacement part.

National SX-FDN1 Transfer Shaft Seals for 1969-1974 GMC K25/K2500: A Comprehensive Analysis

1. Background:

GMC K25 and K2500 models from 1969 to 1974 utilize transfer shaft seals to prevent oil leaks. Replacing these seals is essential for maintaining the vehicle's performance and longevity. National Sealing's SX-FDN1 transfer shaft seals are a popular aftermarket option.

2. Pros:

a. High-quality materials: National's SX-FDN1 seals are designed using premium elastomers, ensuring improved sealing performance and durability.

b. Easy installation: These seals require no special tools for installation, making the process relatively straightforward for most DIY enthusiasts.

c. Cost-effective: Compared to OEM alternatives, aftermarket seals like National's SX-FDN1 are generally more affordable, making them an attractive option for budget-conscious consumers.

3. Cons:

a. Fitment concerns: While the SX-FDN1 seals are designed to fit a wide range of vehicles, there have been reports of fitment issues with certain applications. It's crucial to ensure the correct part number is ordered and properly installed.

b. Availability: These seals may not be readily available at local auto parts stores, requiring consumers to order online or through specialized retailers.

c. Potential for leaks: Although the SX-FDN1 seals are designed for improved sealing performance, it's essential to note that no seal is foolproof. Occasional leaks may still occur, especially after prolonged use.

4. Conclusion:

National Sealing's SX-FDN1 transfer shaft seals offer several advantages, including ease of installation, high-quality materials, and cost-effectiveness. However, potential fitment concerns and occasional leaks are limitations that should be considered before making a purchase.

5. Recommendation:

For individuals seeking a reliable and cost-effective solution for their GMC K25/K2500 transfer shaft seal needs, National Sealing's SX-FDN1 seals are an excellent choice. However, it's essential to ensure the correct part number is obtained and installed properly to minimize the risk of fitment issues and leaks. Additionally, consumers may want to consider purchasing from reputable suppliers to ensure the authenticity and quality of the seals.

Details:

2 pc National Transfer Case Shift Shaft Seals for 1969-1974 GMC K25 K2500 tr: Status: In Stock.

part #: sxfdn1 price

  • $17.05

specifications manutransmission:

  • for models: K25, K2500
  • for makes: Gmc
  • for years: 1969-1974
  • brand: National
  • mpn: Sx-fdn1
  • type: Transfer Case Shift Shaft Seal
  • ipn: C658 28-51
  • item length: 2.000
  • manufacturer warranty: 1 Year
  • placement on vehicle: Transfer Case Gaskets Sealing Systems
  • compatible model: K25/k2500 Pickup
  • compatible year: 1974 1973 1972 1971 1970 1969
  • core charge: Free No Core Charge
  • fitment type: Direct Replacement
  • bundle description: 2 Pc Genuine National Transfer Case Shift Shaft Seal Kit

payments manutransmission:

  • other
  • credit card: Visa
  • wallet: Paypal

seller manutransmission:

  • city: Indianapolis, Indiana
  • rating: 99.0%
  • # reviews: 581033

returns manutransmission:

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

general manutransmission:

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

offer manutransmission:

  • quantity: 3
  • availability: In Stock
  • options: Ship-to-home
  • sold: 0
  • started: October 16, 2025

shipping manutransmission:

  • transit: 2-5 Days
  • cost: $0.00
  • class: Standard, Expedited
  • service: Standard, Expedited
  • type: Fixed
for models: k25, k2500, for makes: gmc, for years: 1969-1974, type: transfer case shift shaft seal, item length: 2.000, manufacturer warranty: 1 year, placement on vehicle: transfer case gaskets sealing systems, compatible model: k25/k2500 pickup, compatible year: 1974 1973 1972 1971 1970 1969, core charge: free no core charge, fitment type: direct replacement, bundle description: 2 pc genuine national transfer case shift shaft seal kit,
category: auto parts > car truck parts accessories > transmission drivetrain > manual transmission parts, sku: 8650409213355603,

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