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  3. TREMEC 3R3Z-7017-AA

TREMEC 3R3Z-7017-AA Shaft 03/04 T56 10-SPLINE

fits model: Cobra.

3r3z-7017-aa Tremec Oem 03/04 Cobra T56 10-spline Input Shaft

( Brand: Tremec ), ( Manufacturer Part Number: 3R3Z-7017-AA ), ( Type: Input Shaft ), ( Material: Steel ), ( Vintage Part: Yes ), ( Universal Fitment: No )

Review TREMEC Oem 03/04 T56 10-spline Input Shaft fits COBRA

The TREMEC 3R3Z-7017-AA 03/04 Cobra T56 10-spline shaft is a crucial component for those looking to upgrade the transmission system in their classic Ford Mustang GT or Cobra models from the early 2000s. This shaft is designed specifically for use with the T56 Magnum six-speed manual transmission, which is a popular choice among enthusiasts for its robustness and smooth shifting.

This 10-spline shaft boasts a number of impressive features. It is made from high-strength steel, ensuring that it can handle the torque and power output of high-performance engines. The spline design provides a strong connection between the transmission and the driveline, minimizing the risk of transmission damage during hard acceleration or racing conditions.

The T56 Tremec transmission is known for its durability and performance, but the stock shaft can sometimes be prone to failure under heavy use. By upgrading to this aftermarket 10-spline shaft, you can significantly improve the reliability and longevity of your transmission system. The shaft is also pre-lubed with high-performance synthetic gear oil, ensuring that it is ready to go right out of the box.

Installation of the TREMEC 3R3Z-7017-AA 03/04 Cobra T56 10-spline shaft is a relatively straightforward process, but it is recommended that the installation be performed by a professional mechanic or experienced enthusiast. The shaft comes with all necessary hardware for installation, including new seals and gaskets to ensure a proper seal and prevent leaks.

In summary, the TREMEC 3R3Z-7017-AA 03/04 Cobra T56 10-spline shaft is an essential upgrade for any Ford Mustang GT or Cobra owner looking to maximize the performance and reliability of their T56 transmission system. Made from high-strength steel and featuring a robust 10-spline design, this shaft is built to handle the demands of high-performance engines and provide years of reliable service.

The Tremec T56 10-spline shaft is a popular choice for those looking to upgrade the transmission in their 03/04 Cobra. Here are some pros and cons to consider before making a purchase:

Pros:

1. Durability: The T56 transmission is known for its strength and durability, and the 10-spline shaft is no exception. It can handle high horsepower and torque levels, making it a popular choice for performance enthusiasts.

2. Smooth Shifting: The T56 transmission offers smooth and precise shifts, which is a significant improvement over the stock transmission. The 10-spline shaft contributes to this by providing a stronger connection between the transmission and the driveshaft.

3. Improved Performance: Upgrading to a T56 transmission and 10-spline shaft can result in improved performance, including increased horsepower and torque, better acceleration, and improved handling.

4. Customization: The T56 transmission is highly customizable, and the 10-spline shaft is no exception. It can be used in a variety of applications, and there are many aftermarket options available to further enhance its performance.

Cons:

1. Cost: The T56 transmission and 10-spline shaft can be quite expensive, especially when compared to the stock transmission. The cost of the upgrade may be a significant barrier for some enthusiasts.

2. Complexity: Installing a T56 transmission and 10-spline shaft is a complex process that requires a significant amount of time, expertise, and resources. It may not be a suitable option for those who are not experienced in car modifications.

3. Compatibility: The T56 transmission and 10-spline shaft may not be compatible with all Cobra models. It is essential to ensure that the upgrade is compatible with your specific vehicle before making a purchase.

4. Maintenance: The T56 transmission and 10-spline shaft require regular maintenance to ensure optimal performance. This may include regular oil changes, clutch replacement, and other maintenance tasks.

Conclusion:

The Tremec T56 10-spline shaft is an excellent upgrade for those looking to improve the performance and durability of their 03/04 Cobra's transmission. However, it comes with a significant cost and requires a complex installation process. If you are an experienced performance enthusiast with the resources to handle the upgrade, it can be an excellent investment. However, if you are new to car modifications or are on a tight budget, it may be worth considering other options. Ultimately, the decision to purchase the T56 transmission and 10-spline shaft depends on your individual needs, budget, and goals.

Details:

This is an OEM T56 10-Spline Input shaft pulled from a 49k Mile 2004 Cobra Transmission.

part #: 3r3z7017 prices

  • $79.95-$80.00

specifications manutransmission:

  • for models: Cobra
  • brand: Tremec
  • mpn: 3r3z-7017-aa
  • type: Input Shaft
  • material: Steel
  • vintage part: Yes
  • universal fitment: No

seller manutransmission:

  • city: Jacksonville, Florida
  • rating: 100.0%
  • # reviews: 45

general manutransmission:

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

shipping manutransmission:

  • service: USPS Ground Advantage
  • transit: 4-11 Days
  • class: Standard
  • carrier: USPS
  • type: Calculated
  • cost: $0.00

offer manutransmission:

  • best offers: True
  • availability: In Stock
  • quantity: 1
  • sold: 0
  • started: August 25, 2025
  • options: Ship-to-home

payments manutransmission:

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

returns manutransmission:

  • policy: No Returns
for models: cobra, type: input shaft, vintage part: yes, universal fitment: no,
category: auto parts > car truck parts accessories > transmission drivetrain > manual transmission parts, material: steel, sku: 7652574498615753,

Tremec 3R3Z-7017 Is Similar To:

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2 offers $79.95–$80.00 USD
  • Offer #1: $79.95 price + $22.40 shipping estimate = $102.35* total. Good used condition, just clean and install.+$22.40 shipping
  • Offer #2: $80.00 price + $16.97 shipping estimate = $96.97* total. All teeth are in good condition Came off a 29k mile 03 cobra that I used to transplant a T-56 into my 99 cobra.+$16.97 shipping

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