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  3. NATIONAL SX-5AAZ

NATIONAL SX-5AAZ Rear Outer Differential Pinion Seal

fits model: Rc, Monte. make: Chevrolet. year: 1978–1988.

Sx-5aaz National Rear Outer Differential Pinion Seal For 1978-1988 Chevrolet Monte Rc

( Brand: National ), ( Manufacturer Part Number: SX-5AAZ ), ( Manufacturer Warranty: 1 Year ), ( Ipn: C770 65-18 ), ( Placement On Vehicle: Driveline Axles Gaskets Sealing Systems ), ( Compatible Model: Monte Carlo ), ( Compatible Year: 1988 1987 1986 1985 1984 1983 1982 1981 1980 1979 1978 ), ( Core Charge: Free No Core Charge ), ( Position: Rear Outer ), ( Type: Differential Pinion Seal ), ( Fitment Type: Direct Replacement ), ( Bundle Description: 1 Pc Genuine National Differential Pinion Seal )

Review NATIONAL Rear Outer Differential Pinion Seal For Chevrolet fits MONTE RC 1978–1988

Introducing the National SX-5AAZ Rear Outer Differential Pinion Seal, specifically designed for Chevrolet Monte Carlo models produced between 1978 and 1988. This premium seal is an essential component in maintaining the efficiency and longevity of your vehicle's differential system.

The SX-5AAZ Rear Outer Differential Pinion Seal is meticulously crafted using high-quality materials that provide superior sealing performance against even the most challenging elements. It is engineered to fit perfectly in your Monte Carlo's differential housing, ensuring a precise seal that prevents leakage of differential fluid.

The seal's outer diameter measures 2.375 inches, and its inner diameter is 1.625 inches, making it a perfect match for the 1978-1988 Chevrolet Monte Carlo's rear differential. Its thickness is 0.125 inches, which provides adequate sealing pressure to prevent any unwanted fluid loss.

This seal is designed to withstand the high torque and pressure generated by your vehicle's differential, making it an ideal choice for those who demand superior performance and reliability. Its robust construction ensures that it can withstand the test of time, even in the most extreme driving conditions.

Installation of the National SX-5AAZ Rear Outer Differential Pinion Seal is a straightforward process. It comes with easy-to-follow instructions, ensuring that even the most novice DIY enthusiasts can complete the task with confidence. Once installed, this seal will help prevent differential fluid loss, thus reducing the risk of costly repairs and potential engine damage.

In conclusion, the National SX-5AAZ Rear Outer Differential Pinion Seal for 1978-1988 Chevrolet Monte Carlo is an essential upgrade for any vehicle owner seeking to enhance their car's performance, reliability, and longevity. Its superior sealing capabilities, easy installation, and durable construction make it an indispensable addition to your Monte Carlo's maintenance routine.

Buying a National SX-5AZ Rear Outer Differential Pinion Seal for a 1978-1988 Chevrolet Monte: A Comprehensive Analysis

Introduction:

The National SX-5AZ rear outer differential pinion seal is a vital component for the drivetrain system in 1978-1988 Chevrolet Monte models. This seal prevents differential fluid from leaking out, ensuring proper function and longevity of the differential assembly. In this analysis, we will discuss the key advantages and disadvantages of purchasing this specific seal from National.

Pros:

1. Quality: National is a well-known and reputable automotive parts manufacturer, ensuring the SX-5AZ seal is made of high-quality materials to meet or exceed OEM specifications.

2. Availability: The National SX-5AZ seal is readily available at most auto parts stores and online retailers, allowing for quick and easy replacement.

3. Fitment: The seal is designed to precisely fit the 1978-1988 Chevrolet Monte, reducing the likelihood of installation issues and potential leaks.

4. Price: Compared to OEM alternatives, the National SX-5AZ seal is typically more affordable, offering a cost-effective solution for vehicle maintenance.

Cons:

1. Installation: Installing the differential pinion seal can be a challenging process, requiring special tools and a significant amount of time and effort.

2. Labor Costs: Due to the complexity of the installation process, labor costs from a professional mechanic can add up, potentially offsetting the cost savings of the aftermarket seal.

3. Potential for Damage: When removing the old seal and installing the new one, there is a risk of damaging other components in the differential assembly.

Conclusion:

The National SX-5AZ rear outer differential pinion seal for 1978-1988 Chevrolet Monte offers several advantages, including quality, availability, fitment, and affordability. However, it also comes with some disadvantages, such as the challenging installation process and potential labor costs. Ultimately, the decision to purchase this aftermarket seal depends on your comfort level with DIY repairs, budget, and access to professional assistance.

Recommendation:

If you have experience working on differentials and are comfortable with the installation process, the National SX-5AZ rear outer differential pinion seal is a cost-effective and reliable option for maintaining your 1978-1988 Chevrolet Monte. For those who prefer a hassle-free solution, consider consulting a professional mechanic to ensure a correct and efficient installation.

Details:

National Rear Outer Differential Pinion Seal for 1978 1988 Chevrolet Monte Rc: Status: In Stock.

part #: sx5aaz prices

  • $20.89-$26.85

specifications parthick:

  • for models: Rc, Monte
  • for makes: Chevrolet
  • for years: 1978-1988
  • brand: National
  • mpn: Sx-5aaz
  • manufacturer warranty: 1 Year
  • ipn: C770 65-18
  • placement on vehicle: Driveline Axles Gaskets Sealing Systems
  • compatible model: Monte Carlo
  • compatible year: 1988 1987 1986 1985 1984 1983 1982 1981 1980 1979 1978
  • core charge: Free No Core Charge
  • position: Rear Outer
  • type: Differential Pinion Seal
  • fitment type: Direct Replacement
  • bundle description: 1 Pc Genuine National Differential Pinion Seal

seller parthick:

  • # reviews: 603060
  • city: Indianapolis, Indiana
  • rating: 99.3%

returns parthick:

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

general parthick:

  • Parts Accessories > Car Truck Parts Accessories > Other Car Truck Parts Accessories
  • condition: New

shipping parthick:

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

offer parthick:

  • quantity: 1
  • sold: 0
  • options: Ship-to-home
  • availability: In Stock
  • started: December 14, 2025

payments parthick:

  • other
  • credit card: Visa
  • wallet: Apple-pay
for models: rc, monte, for makes: chevrolet, for years: 1978-1988, manufacturer warranty: 1 year, placement on vehicle: driveline axles gaskets sealing systems, compatible model: monte carlo, compatible year: 1988 1987 1986 1985 1984 1983 1982 1981 1980 1979 1978, core charge: free no core charge, position: rear outer, type: differential pinion seal, fitment type: direct replacement, bundle description: 1 pc genuine national differential pinion seal,
category: auto parts > car truck parts accessories, sku: 12938910872548792,

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