GM 14020857 Trans Transfer Adapter Chevy/gmc NP208

( Brand: Gm ), ( Manufacturer Part Number: 14020857 ), ( Type: New Process ), ( Oe/oem Part Number: 15598986 )

Review GM 1981 84 Chevy/gmc Trans To Transfer Case Adapter #14020857 Long Foot fits SM465 1981-84

1981-84 Chevy/GMC SM465 Transmission NP208 Transfer Adapter (GM Part No. 14020857)

This transfer adapter is a crucial component for linking the SM465 transmission to the NP208 transfer case in 1981-84 Chevrolet and GMC vehicles. Manufactured by General Motors under part number 14020857, this transfer adapter is designed to provide a secure and reliable connection between the two crucial powertrain components.

The SM465 transmission transfer adapter is a high-quality aftermarket part, engineered to meet the precise specifications of OEM components. It is constructed using durable materials, ensuring it can withstand the rigors of off-road and heavy-duty applications. The adapter features a robust design with precision-machined surfaces and threads, ensuring a perfect fit and smooth power transfer between the transmission and transfer case.

1. Compatibility: Designed for use in 1981-84 Chevrolet and GMC vehicles equipped with the SM465 transmission and NP208 transfer case.

2. Durability: Manufactured using high-quality materials and components for long-lasting performance in even the most demanding conditions.

3. Precision engineering: Featuring precision-machined surfaces and threads for a perfect fit and smooth power transfer.

4. Easy installation: Designed for straightforward installation, ensuring a seamless upgrade or replacement process.

5. OEM-grade performance: Engineered to meet or exceed the performance of original equipment transfer adapters.

By upgrading or replacing your worn or damaged transfer adapter with this GM OE-quality part, you can ensure optimal power transfer between the transmission and transfer case, leading to improved vehicle performance and reliability. Whether you're tackling off-road trails, towing heavy loads, or simply driving your classic Chevy or GMC, this transfer adapter is an essential upgrade for maintaining the longevity and overall functionality of your powertrain system.

Buying a GM 14020857 transfer case and NP208 transfer adapter for a 1981-1984 Chevy or GMC truck with a SM465 transmission can be a good investment for off-road enthusiasts or those who require heavy-duty towing capabilities. Here are some pros and cons to help you make an informed decision:

1. Increased torque capacity: The NP208 transfer case and SM465 transmission combination can handle higher torque loads than the standard transmission and transfer case setup. This makes it an excellent choice for those who tow heavy loads or require more power for off-road use.

2. Improved off-road performance: The NP208 transfer case provides better low-end torque and improved crawl ratios, making it ideal for off-road applications. It also comes with a locking center differential, which can help improve traction in challenging terrain.

3. Durability: The SM465 transmission and NP208 transfer case are known for their durability, making them a popular choice among off-road enthusiasts and commercial use applications.

1. Cost: The GM 14020857 transfer case and NP208 transfer adapter setup can be quite expensive compared to the standard setup. The cost of the parts, labor, and installation can add up quickly.

2. Complexity: The installation process can be complex, especially for those without experience in manual transmission and transfer case swaps. It may require specialized tools and knowledge to ensure a proper installation.

3. Fuel economy: The increased power and torque capabilities of this setup can lead to decreased fuel economy. This may not be a concern for those who primarily use their trucks for heavy-duty applications, but it is worth considering for those who prioritize fuel efficiency.

In conclusion, the GM 14020857 transfer case and NP208 transfer adapter setup can be an excellent investment for those who require heavy-duty towing capabilities or off-road performance. However, it comes with a high cost, complexity, and potential decreased fuel economy that should be carefully considered before making a purchase.

If you are in the market for a high-performance, heavy-duty transmission and transfer case setup for your 1981-1984 Chevy or GMC truck, the SM465 transmission with an NP208 transfer case and transfer adapter may be the best choice for you. However, be prepared for the high cost, complex installation process, and potential decreased fuel economy that comes with this setup. It is recommended that you consult a professional mechanic or off-road specialist to ensure a proper installation and to discuss any potential concerns or alternatives.

Details:

It has been cleaned and inspected. There are no cracks or broken areas. It was removed from a 1984 Chevy K20 truck. This is a transfer case adapter for Chevy and GMC trucks with SM465 4 sped manual transmission NP208.

One of the threaded holes has been repaired with a helical, it holds strong. The adapter measures 11 1/4 tall and 8 5/16 long. This is the tall long foot adapter made to be used with drop down cross member available in a separate listing.

part #: 14020857 prices

• $116.00-$295.00

specifications manutransmission:

• for models: Sm465
• for makes: Chevy, Gmc
• for years: 1981-84
• brand: Gm
• mpn: 14020857
• type: New Process
• oe/oem part number: 15598986

payments manutransmission:

• other
• credit card: Discover
• wallet: Apple-pay

returns manutransmission:

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

offer manutransmission:

• options: Ship-to-home
• quantity: 1
• availability: In Stock
• sold: 0
• started: August 8, 2025

shipping manutransmission:

• type: Fixed
• cost: $0.00
• class: Standard
• transit: 4-8 Days
• service: Standard

general manutransmission:

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

seller manutransmission:

• city: Deer Park, Washington
• # reviews: 3421
• rating: 100.0%

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