NATIONAL C135 Shaft Seal Kit American Manual 72-61

( Brand: National ), ( Type: Manual Transmission Output Shaft Seal Kit ), ( Manufacturer Warranty: 1 Year ), ( Ipn: C135 72-61 ), ( Item Length: 2.750 ), ( Placement On Vehicle: Transmission Gaskets Sealing Systems ), ( Compatible Make: American Motors ), ( Core Charge: Free No Core Charge ), ( Fitment Type: Direct Replacement ), ( Bundle Description: 1 Pc Genuine National Manual Transmission Output Shaft Seal Kit )

Review NATIONAL 72-61 Output Shaft Seal Kit For American Motors Manual fits JAVELIN 1974

Introducing the National C135 72-61 Shaft Seal Kit, specifically designed for the 1974 American Javelin manual transmission. This kit is a must-have for any Javelin owner seeking to maintain the optimal performance and longevity of their vehicle's powertrain.

The National C135 72-61 Shaft Seal Kit includes all the necessary components to replace the worn-out or damaged seals in your Javelin's manual transmission. Each seal in this kit is meticulously engineered to provide a perfect fit and function, ensuring a leak-free transmission and improved efficiency.

The heart of this kit is the C135 shaft seal, which is responsible for preventing oil leakage between the transmission housing and the output shaft. This high-quality seal is manufactured using advanced materials, such as a durable rubber compound and precision-machined steel backing. This combination provides exceptional sealing performance, even under the most demanding driving conditions.

In addition to the shaft seal, this kit also includes a selection of other essential seals, including the transmission input seal, transmission output seal, and the clutch housing seal. Each seal is designed to work harmoniously with one another, ensuring a seamless and effective sealing system for your Javelin's transmission.

The installation process for this kit is straightforward and can typically be completed in a few hours with the proper tools and a bit of patience. Detailed instructions are included with the kit to guide you through the process step by step.

By investing in the National C135 72-61 Shaft Seal Kit, you're not only ensuring the continued reliability and longevity of your 1974 American Javelin's manual transmission but also improving its overall performance. Don't let a leaking transmission hold you back upgrade to this premium seal kit today!

Pros and Cons of Buying a National C135 Shaft Seal Kit for a 1974 American Javelin

The National C135 shaft seal kit is a common replacement option for the shaft seal system in a 1974 American Javelin. Replacing the shaft seals can help prevent power loss and potential engine damage due to leaks. Here are some potential advantages and disadvantages to consider before purchasing this kit.

1. OEM compatibility: The National C135 shaft seal kit is specifically designed for the American Javelin, ensuring a proper fit and function.

2. Improved performance: New shaft seals can help improve engine performance by reducing power loss due to leaks and improving oil flow.

3. Prevent engine damage: Leaking shaft seals can lead to engine damage if left unaddressed. Replacing the seals with a new kit can help prevent these issues.

4. Availability: The National C135 shaft seal kit is widely available from various automotive parts retailers, both in-store and online.

5. Relatively affordable: Compared to other major engine repairs, the cost of a shaft seal kit is relatively affordable.

1. Labor costs: Installing the new shaft seals requires removing the engine, which can be a complex and time-consuming process. Labor costs can add significantly to the overall cost of the repair.

2. Potential for other issues: Replacing the shaft seals may uncover other engine issues that were previously hidden. These issues can add to the overall cost of the repair.

3. Availability of tools: Removing the engine and replacing the shaft seals requires specialized tools, which may not be readily available to the average DIY mechanic.

4. Potential for error: Installing the new shaft seals improperly can lead to leaks and other issues. It's important to follow the installation instructions carefully and ensure a proper fit.

5. Potential for environmental impact: The process of replacing the shaft seals can generate waste oil and other materials, which can have an environmental impact if not disposed of properly.

The National C135 shaft seal kit can be a worthwhile investment for a 1974 American Javelin, as it can help improve engine performance, prevent potential engine damage, and ensure OEM compatibility. However, it's important to consider the potential cons, such as labor costs, the possibility of discovering other engine issues, and the need for specialized tools. Ultimately, the decision to purchase the kit depends on the individual's budget, mechanic skills, and priorities. If the cost and potential challenges of the repair outweigh the benefits, it may be worth considering alternative solutions, such as selling the vehicle or seeking out a professional repair service.

If the decision is made to proceed with the repair, it's recommended to source the National C135 shaft seal kit from a reputable parts supplier, such as an OEM dealer or a trusted automotive parts retailer. It's also recommended to carefully review the installation instructions and gather all necessary tools before beginning the repair. Additionally, it may be wise to consider seeking out the assistance of a professional mechanic, especially if the individual lacks the necessary experience or tools for the repair.

Details:

National Output Shaft Seal Kit for 1974 American Motors Javelin Manual an: Status: In Stock.

specifications manutransmission:

• for models: Javelin
• for years: 1974
• brand: National
• type: Manual Transmission Output Shaft Seal Kit
• manufacturer warranty: 1 Year
• ipn: C135 72-61
• item length: 2.750
• placement on vehicle: Transmission Gaskets Sealing Systems
• compatible make: American Motors
• core charge: Free No Core Charge
• fitment type: Direct Replacement
• bundle description: 1 Pc Genuine National Manual Transmission Output Shaft Seal Kit

general manutransmission:

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

offer manutransmission:

• sold: 0
• options: Ship-to-home
• availability: In Stock
• quantity: 3
• started: April 19, 2026

shipping manutransmission:

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

seller manutransmission:

• city: Indianapolis, Indiana
• rating: 99.6%
• # reviews: 647020

payments manutransmission:

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

returns manutransmission:

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

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