Tremec Magnum XL 6-Speed Transmission Package TUKT16901 – 2.66 First Gear – .80 / .63 Overdrive – Extended Tail Housing for Ford Performance Builds
Tremec Magnum XL 6-Speed Transmission Package TUKT16901 – 2.66 First Gear – .80 / .63 Overdrive – Extended Tail Housing for Ford Performance Builds
Tremec Magnum XL 6-Speed Transmission Conversion
Upgrade your 2005–2014 Mustang with the Tremec Magnum XL — a high-strength direct-shift 6-speed transmission designed for improved durability, shift precision, and high horsepower performance.
The Magnum XL eliminates the factory remote shifter design and replaces it with a performance-focused drivetrain solution ideal for street, strip, and pro-touring builds.
- Design & Performance Features
- Direct-shift extended tail housing improves shift feel and driver control
- Close-ratio gear set optimized for acceleration and highway performance
- Double overdrive gearing reduces cruising RPM
- Rated for high horsepower applications up to 700 lb-ft torque
- Improved drivetrain strength compared to factory transmissions
- Ideal upgrade for performance Mustang builds
Gear Ratios
1st – 2.66
2nd – 1.78
3rd – 1.30
4th – 1.00
5th – .80
6th – .63
Common Performance Applications
- 2005–2014 Ford Mustang performance builds
- TR-3650 transmission replacement upgrades
- MT-82 transmission strength upgrades
- Pro-touring street and track vehicles
- High horsepower manual transmission conversions
Transmission Conversion Package Includes
- Tremec Magnum XL 6-speed transmission
- Extended tail housing with direct-shift location
- SFI-approved steel bellhousing
- Vehicle-specific crossmember
- Transmission mount
Installation Requirements
- 26-spline clutch upgrade required
- One-piece performance driveshaft required
- Shifter handle and knob options sold separately
- Transmission fluid and installation hardware not included
Performance Capacity
Rated for applications up to 700 lb-ft of torque.
TUKT16901
Instructions

Description
Tremec Magnum XL 6-Speed Transmission Conversion
Upgrade your 2005–2014 Mustang with the Tremec Magnum XL — a high-strength direct-shift 6-speed transmission designed for improved durability, shift precision, and high horsepower performance.
The Magnum XL eliminates the factory remote shifter design and replaces it with a performance-focused drivetrain solution ideal for street, strip, and pro-touring builds.
- Design & Performance Features
- Direct-shift extended tail housing improves shift feel and driver control
- Close-ratio gear set optimized for acceleration and highway performance
- Double overdrive gearing reduces cruising RPM
- Rated for high horsepower applications up to 700 lb-ft torque
- Improved drivetrain strength compared to factory transmissions
- Ideal upgrade for performance Mustang builds
Gear Ratios
1st – 2.66
2nd – 1.78
3rd – 1.30
4th – 1.00
5th – .80
6th – .63
Common Performance Applications
- 2005–2014 Ford Mustang performance builds
- TR-3650 transmission replacement upgrades
- MT-82 transmission strength upgrades
- Pro-touring street and track vehicles
- High horsepower manual transmission conversions
Transmission Conversion Package Includes
- Tremec Magnum XL 6-speed transmission
- Extended tail housing with direct-shift location
- SFI-approved steel bellhousing
- Vehicle-specific crossmember
- Transmission mount
Installation Requirements
- 26-spline clutch upgrade required
- One-piece performance driveshaft required
- Shifter handle and knob options sold separately
- Transmission fluid and installation hardware not included
Performance Capacity
Rated for applications up to 700 lb-ft of torque.
TUKT16901
Instructions











