Tremec Magnum XL 6-Speed Transmission Conversion Package – TUKT12021
Tremec Magnum XL 6-Speed Transmission Conversion Package – TUKT12021 is backordered and will ship as soon as it is back in stock.
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The Tremec Magnum XL is a high-strength performance manual transmission designed to improve durability, shift precision, and overall drivetrain performance in modern muscle and pro-touring applications.
Introduced as an evolution of the proven Magnum 6-speed platform, the Magnum XL retains the strength and sophistication of the original design while incorporating an extended tail housing that eliminates the factory semi-remote shifter arrangement. This direct-shift configuration improves driver engagement, gear control, and long-term reliability in high-horsepower street and track builds.
This conversion package is engineered for 2005-up Ford Mustang applications, providing a serious upgrade over factory 5- and 6-speed manual transmissions where performance improvements are desired.
Design and Performance Features
- Direct-shift extended tail housing improves shift feel and driver control
- High-strength Magnum geartrain designed for performance use
- Close-ratio gearing provides strong acceleration with improved highway drivability
- Electronic speedometer output for modern vehicle integration
- Eliminates factory remote shifter deflection
- Proven durability for high-horsepower street and track vehicles
Transmission Specifications
- Input Shaft: 26-spline
- Output Shaft: 31-spline
- Shifter Location: 34.9" from front of bellhousing
- Transmission Mount Location: 28.1"
- Electronic speedometer output
Gear Ratios
1st – 2.97
2nd – 2.10
3rd – 1.46
4th – 1.00
5th – 0.80
6th – 0.63
This ratio package provides improved launch performance with double overdrive gearing to reduce cruising RPM and enhance highway drivability.
Common Performance Applications
- 2005-up Mustang performance upgrades
- MT-82 and TR-3650 strength conversions
- Pro-touring street and track builds
- High horsepower manual transmission swaps
- Restomod drivetrain upgrades
Transmission Conversion Package Includes
- Tremec Magnum XL 6-speed transmission
- SFI-rated steel bellhousing with block plate
- Vehicle-specific crossmember
- OE-style transmission mount
Installation Requirements
- 26-spline clutch upgrade required (sold separately)
- One-piece performance driveshaft required (sold separately)
- Transmission fluid and installation hardware not included
- Contact Bowler Performance for clutch and driveshaft recommendations
Platform Background
The Magnum XL builds on the proven Magnum 6-speed platform with an extended tail housing and direct-shift design for improved strength, precision, and modern Mustang fitment.
Installation Instructions
Refer to Tremec TKO and T-56 installation guidelines for general manual transmission installation procedures.
Instructions
