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  3. NATIONAL SX-4FRC

NATIONAL SX-4FRC Transmission Shaft Seal Ag

fits model: K1500, Suburban. make: Gmc. year: 1979–1982.

Sx-4frc National Transmission Shift Shaft Seal For 1979-1982 Gmc K1500 Suburban Ag

( Brand: National ), ( Manufacturer Part Number: SX-4FRC ), ( Type: Manual Transmission Shift Shaft Seal ), ( Manufacturer Warranty: 1 Year ), ( Ipn: C608 68-36 ), ( Item Length: 2.000 ), ( Placement On Vehicle: Transmission Gaskets Sealing Systems ), ( Compatible Model: K1500 Suburban ), ( Compatible Year: 1982 1981 1980 1979 ), ( 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 Ag fits SUBURBAN K1500 1979–1982

Introducing the National SX-4FRC Transmission Shaft Seal, specifically designed for 1979-1982 GMC K1500 Suburbans. This premium seal offers superior performance and durability compared to the original equipment.

The SX-4FRC Transmission Shaft Seal is made from a high-quality, reinforced rubber compound that provides excellent resistance to oil, heat, and wear. Its unique four-lip design ensures a leak-free seal, preventing transmission fluid from escaping and contaminating other components. The seal's outer diameter is precision-engineered to fit perfectly in the transmission housing, ensuring a snug and secure fit.

This seal is an upgrade from the original factory seal, offering enhanced sealing capabilities to help prolong the life of your transmission. Its advanced design also allows it to accommodate slight variations in shaft diameter, making it a reliable solution for vehicles with worn or damaged seals.

The installation process is straightforward, and the seal comes with clear instructions to make the job as easy as possible for the average DIYer. However, if you prefer, you can also have it installed by a professional mechanic.

In summary, the National SX-4FRC Transmission Shaft Seal is an essential upgrade for your 1979-1982 GMC K1500 Suburban. It provides superior sealing capabilities, withstands the rigors of daily driving, and is backed by National's commitment to quality and customer satisfaction. Don't let a leaking transmission shaft seal compromise your vehicle's performance and reliability. Upgrade to the National SX-4FRC Transmission Shaft Seal today.

The National SX-4 FRC transmission shaft seal is a crucial component for the 1979-1982 GMC K1500 Suburban AG vehicles. This part helps prevent transmission fluid leakage and ensures proper sealing of the transmission shaft. Here are some pros and cons of buying and installing this seal:

Pros:

1. Improved Transmission Performance: A faulty or worn-out seal can cause transmission fluid leakage, leading to poor performance, grinding gears, or even transmission failure. Replacing the seal with a new one can help improve the overall performance of your transmission.

2. Longer Transmission Life: By preventing fluid leakage, the new seal can help prolong the life of your transmission system.

3. Cost-Effective: Compared to the cost of a new transmission, replacing the seal is a more cost-effective option to keep your vehicle running smoothly.

4. DIY Installation: The installation process for the National SX-4 FRC transmission shaft seal is relatively straightforward, making it a viable option for those who prefer to do the job themselves.

5. Availability: The seal is readily available in the aftermarket, and you can purchase it from various auto parts stores or online retailers.

Cons:

1. Installation Time: While the installation process is straightforward, it may take some time, especially if you're not experienced with transmission work.

2. Cost: Replacing the seal is not a cheap repair, but it is less expensive than a new transmission.

3. Potential for Additional Repairs: If the seal failure was due to another underlying issue, such as a worn-out clutch or damaged input shaft, replacing the seal may only be a temporary fix.

In conclusion, the National SX-4 FRC transmission shaft seal is an essential repair for your 1979-1982 GMC K1500 Suburban AG vehicle. While it may not be the most cost-effective repair, it can help prevent more extensive and expensive damage to your transmission system. If you notice signs of transmission fluid leakage, such as a burning smell or puddles under your vehicle, it's best to replace the seal as soon as possible.

Recommendation:

If you're experiencing transmission fluid leakage or suspect that your seal may be faulty, we recommend replacing the National SX-4 FRC transmission shaft seal. While it may require some time and investment, it can save you from costly repairs or a new transmission down the line. If you're not comfortable with the installation process, consider taking your vehicle to a professional mechanic to ensure a proper repair.

Details:

National Transmission Shift Shaft Seal for 1979 1982 GMC K1500 Suburban ag: Status: In Stock.

part #: sx4frc price

  • $11.97

specifications manutransmission:

  • for models: K1500, Suburban
  • for makes: Gmc
  • for years: 1979-1982
  • brand: National
  • mpn: Sx-4frc
  • type: Manual Transmission Shift Shaft Seal
  • manufacturer warranty: 1 Year
  • ipn: C608 68-36
  • item length: 2.000
  • placement on vehicle: Transmission Gaskets Sealing Systems
  • compatible model: K1500 Suburban
  • compatible year: 1982 1981 1980 1979
  • core charge: Free No Core Charge
  • fitment type: Direct Replacement
  • bundle description: 1 Pc Genuine National Manual Transmission Shift Shaft Seal

shipping manutransmission:

  • cost: $0.00
  • transit: 5-8 Days
  • class: Standard, Expedited
  • type: Fixed
  • service: Standard, Expedited

returns manutransmission:

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

offer manutransmission:

  • options: Ship-to-home
  • quantity: 5
  • availability: In Stock
  • sold: 0
  • started: July 12, 2025

payments manutransmission:

  • credit card: Mastercard
  • wallet: Google-pay
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seller manutransmission:

  • rating: 98.8%
  • # reviews: 559997
  • city: Indianapolis, Indiana

general manutransmission:

  • Car Truck Parts Accessories > Transmission Drivetrain > Manual Transmission Parts
  • condition: New
for models: k1500, suburban, for makes: gmc, for years: 1979-1982, type: manual transmission shift shaft seal, manufacturer warranty: 1 year, item length: 2.000, placement on vehicle: transmission gaskets sealing systems, compatible model: k1500 suburban, compatible year: 1982 1981 1980 1979, 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: 6665146500822721,

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