TREMEC 1386-000-023 Transmission T56 MM6 5.7L

( Brand: Tremec ), ( Manufacturer Part Number: 1386-000-023 ), ( Type: Manual Transmission ), ( Housing Material: Aluminum ), ( Items Included: Transmission ), ( Vintage Part: Yes ), ( Country/region Of Manufacture: United States )

Review TREMEC Remanufactured T56mm 6/6 Speed Transmission Chevy 5.7l fits CORVETTE C5 LS1 2001–2005

The TREMEC T56 Magnum six-speed manual transmission is an iconic performance transmission, and the 1386-000-023 variant is specifically designed for use in 2001 to 2005 Chevrolet Corvette C5 LS1 vehicles with a 5.7L engine.

This transmission is engineered to provide exceptional power capacity, durability, and shifting performance. It features a robust cast iron housing and a triple-converter design, which delivers impressive torque capacity and smooth, consistent power delivery. The T56 Magnum transmission is also known for its short, direct shifter throws, making it a favorite among enthusiasts and racers.

The T56 transmission's synchronizers are designed to handle high power levels, ensuring seamless gear changes even under heavy load. The transmission's clutch system features a multi-plate design, which provides excellent clamping force for positive engagement and reduces slippage.

Additionally, the T56 Magnum transmission includes a reverse gear, which is engaged by a reversible input shaft. This reverse gear is essential for safe and effective operation of the vehicle.

The T56 Magnum transmission is compatible with a wide range of engine sizes and power levels, making it a versatile choice for performance enthusiasts. It is designed to fit directly into the Corvette C5 LS1's transmission tunnel, making installation straightforward and hassle-free.

In summary, the TREMEC T56 Magnum 1386-000-023 transmission is a high-performance six-speed manual transmission specifically designed for use in 2001 to 2005 Chevrolet Corvette C5 LS1 vehicles. It offers exceptional power capacity, durability, and shifting performance, making it a favorite among performance enthusiasts and racers. With its robust design, short shifter throws, and easy installation, the T56 Magnum transmission is the ideal choice for anyone looking to enhance the performance of their Corvette C5 LS1.

The Tremec T56MM6 transmission, specifically the 1386-000-023 variant, is a popular choice for upgrading the manual transmission in 2001-05 Chevy Corvette C5 LS1 vehicles with a 5.7L engine. This transmission offers several advantages over the stock unit, but it also comes with some potential drawbacks.

1. Enhanced Performance: The T56MM6 transmission provides improved torque capacity and smoother shifting compared to the stock Corvette transmission. It can accommodate higher horsepower levels, making it an excellent choice for those looking to modify their Corvette or for track use.

2. Durability: This transmission is known for its robustness and durability. It is capable of handling high power levels and heavy use, which is beneficial for those planning extensive track days or high-performance driving.

3. Gear Ratio Options: The T56MM6 transmission offers a wider range of gear ratio options, which can help optimize performance for various driving styles and applications, such as street driving, track racing, or drag racing.

1. Cost: The Tremec T56MM6 transmission can be more expensive compared to the stock Corvette transmission. This cost difference might deter some buyers, especially those on a tight budget.

2. Installation Complexity: Installing this transmission may require additional time and expertise compared to the stock unit. This could lead to higher installation costs or the need for professional assistance.

3. Weight: The T56MM6 transmission is heavier than the stock transmission, which might affect overall vehicle performance, particularly in acceleration and fuel economy.

The Tremec T56MM6 transmission is an excellent upgrade option for those seeking improved performance, durability, and gear ratio flexibility in their 2001-05 Chevy Corvette C5 LS1 with a 5.7L engine. However, it comes with a higher cost, increased complexity during installation, and additional weight compared to the stock transmission.

If you are looking for enhanced performance, durability, and the flexibility of various gear ratio options, investing in the Tremec T56MM6 transmission could be a wise choice for your 2001-05 Chevy Corvette C5 LS1. However, consider your budget, installation capabilities, and desired driving style carefully before making the purchase. If performance modifications are not a priority, you might be better off sticking with the stock transmission.

Details:

The transmission has an aluminum case, does not include bell housing - note: you are buying the overdrive pictured, whole vehicle, Transmission is sold outright no core deposit. INVENTORY REDUCTION SALE!, Transmission Exchange Co.

part #: 1386000023 prices

• $1199.99-$2850.00

specifications complmanu:

• for models: C5, Ls1, Corvette
• for makes: Chevy
• for years: 2001-2005
• brand: Tremec
• mpn: 1386-000-023
• type: Manual Transmission
• housing material: Aluminum
• items included: Transmission
• vintage part: Yes
• country/region of manufacture: United States

shipping complmanu:

• class: Standard
• service: Standard
• cost: $0.00
• type: Fixed
• transit: 5-11 Days

general complmanu:

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

payments complmanu:

• other
• credit card: Diners-club
• wallet: Google-pay

offer complmanu:

• started: May 24, 2025
• options: Ship-to-home
• best offers: True
• sold: 0
• quantity: 1
• availability: In Stock

seller complmanu:

• # reviews: 169
• rating: 100.0%
• city: Portland, Oregon

returns complmanu:

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

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