Ford Mustang T-56 6spd Transmission

Up for sale is a genuine Ford Mustang T-56 6spd Transmission originally fitted to a Ford Mustang – one of the most iconic muscle car platforms in American automotive history. If you’re looking to upgrade your Mustang’s drivetrain, build a street-legal monster, or simply replace a worn-out gearbox with a high-performance OEM solution, this transmission is the perfect match.

Overview of the Ford Mustang T-56 6spd Transmission

The Ford Mustang T-56 6spd Transmission is a legendary manual gearbox known for its strength, versatility, and precision. Originally developed by Borg-Warner and later manufactured by Tremec, the Ford Mustang T-56 6spd Transmission has been used in numerous high-performance vehicles, including the Ford Mustang Cobra, Chevrolet Camaro, Dodge Viper, and even Aston Martin models.

This particular unit is the Ford Mustang T-56 6spd Transmission, designed to bolt up to Modular Ford V8 engines such as the 4.6L DOHC found in the 2003-2004 Mustang SVT Cobra (“Terminator”) and other high-output Ford applications. It features Ford-specific input shaft and bellhousing patterns, as well as internal gearing ratios optimized for performance and drivability.

Technical Specifications

• Transmission Model: T-56

• Speeds: 6 forward gears, 1 reverse

• Gear Ratios (Ford Cobra T-56):

  • 1st: 2.66

  • 2nd: 1.78

  • 3rd: 1.30

  • 4th: 1.00

  • 5th: 0.80

  • 6th: 0.63

• Input Shaft: 10-spline

• Output Shaft: 27-spline

• Case Material: Cast aluminum

• Synchromesh: All forward gears

• Shift Linkage: Internal rail, factory-style shifter included

• Bellhousing: Optional (available upon request or separately)

Condition

This Ford Mustang T-56 6spd Transmission is used but in excellent working condition. It was removed from a running vehicle with no issues during operation. All gears engage smoothly, and there are no grinding noises or shifting problems. The transmission was recently drained, inspected, and cleaned. There are no cracks or visible damage to the casing, and all mounting points are intact.

The unit has approximately 70,000 miles on it and has not been raced or abused. It was mated to a naturally aspirated 4.6L DOHC V8 and saw mostly highway and light city use. It’s ready for installation as-is or can be a solid candidate for a full rebuild or performance upgrade if desired.

Why Choose the Ford Mustang T-56 6spd Transmission for Your Mustang or Swap?

Whether you’re building a restomod, a drag car, a track-day monster, or a weekend cruiser, the Ford Mustang T-56 6spd Transmission offers incredible flexibility:

• High Torque Rating: The T-56 can handle up to 450 lb-ft of torque in its stock form, and even more with upgraded internals.

• Close-Ratio Gearset: Provides excellent acceleration in lower gears and relaxed cruising in 6th thanks to the double overdrive.

• Aftermarket Support: Tremec T-56 parts are widely available, including short-throw shifters, upgraded synchros, gearsets, and clutch kits.

• Perfect for Engine Swaps: Popular choice for Coyote, LS, and other V8 engine swaps in classic Mustangs, Falcons, and even modern platforms.

• Race Proven: Used in high-performance vehicles worldwide—reliable for street, strip, and track applications.

Fitment

This transmission is a direct fit for:

• 2003-2004 Ford Mustang SVT Cobra

• 1999-2001 Mustang Cobra (with conversion components)

• Ford modular engine builds (4.6L, 5.0 Coyote, etc.)

• Foxbody, SN95, New Edge Mustangs (with adapter kits or crossmembers)

It can also be adapted to many other vehicles with the appropriate bellhousing and clutch components. If you’re planning a swap, I’m happy to provide advice or point you to reputable parts suppliers for adapters, crossmembers, and hydraulic clutch kits.

What’s Included

• Complete Ford Mustang T-56 6spd Transmission assembly

• Factory-style shifter

• Speed sensor

• Backup light switch

• Transmission mount (optional – let me know)

• Inspection cover

Pricing & Shipping

Price: $2,250 OBO

Willing to negotiate within reason. Serious buyers only, please—this is not a cheap knockoff or aftermarket unit. It’s a factory Tremec transmission, built to OEM Ford specs and ready to go.

• Local pickup available in [Miami FL]

• Willing to ship at buyer’s expense (freight shipping required; I can help arrange it)

• Payment via cash, PayPal, Venmo, or certified funds (no personal checks)

Contact

If you’re interested or have any questions, feel free to message me. I can send additional photos, videos of the unit, or provide more details about condition, mileage, or compatibility. I’ve done several Mustang builds myself and can assist with technical questions or sourcing parts.

Don’t miss this opportunity to own a solid, hard-to-find Ford Mustang T-56 6spd Transmission for your Mustang build or drivetrain upgrade. With manual transmissions becoming rarer and more sought-after in the performance world, now is the time to lock in a reliable, race-proven gearbox for your project.