Tremec TUET11012 T-56 Magnum Performance Transmission — Wide Ratio (GM LS Engines)
The wide-ratio version of the legendary Tremec T-56 Magnum. Perfect for LS-powered street cars, cruisers, and high-horsepower builds needing massive torque capacity with relaxed highway RPM.
Features:
- Rated for 700 lb-ft torque
- Wide-ratio gear set (2.97 / 2.10 / 1.46 / 1.00 / 0.74 / 0.50)
- 26-spline input, 31-spline output
- Multiple shift stub locations
- Single-rail shifter design
- Mechanical OR electronic speedometer compatible
- Reverse light switch + reverse lockout built in
- 3-piece synchronizer assemblies
- Optional Stage 2 upgrade available
- Factory Tremec & Bowler 1-year warranty
Fitment:
- GM LS engines (LS1, LS2, LS3, LS6, LS7, LSX)
- Works with GM Magnum bellhousings
- Compatible with standard LS clutch systems
- Console fitment possible using relocation kits
- Not a direct bolt-in for OE 4th-gen/5th-gen cars (custom install required)
What’s Included:
- Tremec T-56 Magnum TUET11012 wide-ratio transmission
- 1-year Tremec & Bowler warranty
- Standard shift position (adjustable)
- Optional accessories listed above (fluid, mount, yokes, hydraulics, bellhousing)
Description:
The Tremec T-56 Magnum TUET11012 is the wide-ratio version of Tremec’s most sought-after 6-speed manual transmission. Ideal for GM LS swaps, pro-touring builds, and high-performance street cars, the wide-ratio gearing provides excellent street drivability with deep overdrive for low cruising RPM and improved MPG.
Engineered from the same DNA as the TR-6060 used in supercars like the C6 ZR1 and Viper ACR, the Magnum brings OEM refinement paired with hardcore aftermarket strength. With a 700 lb-ft torque rating, robust synchronizers, and multiple shifter locations, it’s designed for everything from smooth street driving to aggressive performance use.
Bowler offers the optional Stage 2 upgrade, enhancing shifting precision with carbon-hybrid synchros, Vespel pads, upgraded 2nd gear, and a hardened 1–2 hub — perfect for Autocross and Road Race builds.
When shopping, be aware that cheaper “packages” often include off-brand components. Bowler uses only premium parts to give you the reliability, shifting feel, and longevity you expect from a premium drivetrain conversion.
Gear Ratios:
1st: 2.97
2nd: 2.10
3rd: 1.46
4th: 1.00
5th: 0.74
6th: 0.50
TUET11012
Instructions
The wide-ratio version of the legendary Tremec T-56 Magnum. Perfect for LS-powered street cars, cruisers, and high-horsepower builds needing massive torque capacity with relaxed highway RPM.
Features:
- Rated for 700 lb-ft torque
- Wide-ratio gear set (2.97 / 2.10 / 1.46 / 1.00 / 0.74 / 0.50)
- 26-spline input, 31-spline output
- Multiple shift stub locations
- Single-rail shifter design
- Mechanical OR electronic speedometer compatible
- Reverse light switch + reverse lockout built in
- 3-piece synchronizer assemblies
- Optional Stage 2 upgrade available
- Factory Tremec & Bowler 1-year warranty
Fitment:
- GM LS engines (LS1, LS2, LS3, LS6, LS7, LSX)
- Works with GM Magnum bellhousings
- Compatible with standard LS clutch systems
- Console fitment possible using relocation kits
- Not a direct bolt-in for OE 4th-gen/5th-gen cars (custom install required)
What’s Included:
- Tremec T-56 Magnum TUET11012 wide-ratio transmission
- 1-year Tremec & Bowler warranty
- Standard shift position (adjustable)
- Optional accessories listed above (fluid, mount, yokes, hydraulics, bellhousing)
Description:
The Tremec T-56 Magnum TUET11012 is the wide-ratio version of Tremec’s most sought-after 6-speed manual transmission. Ideal for GM LS swaps, pro-touring builds, and high-performance street cars, the wide-ratio gearing provides excellent street drivability with deep overdrive for low cruising RPM and improved MPG.
Engineered from the same DNA as the TR-6060 used in supercars like the C6 ZR1 and Viper ACR, the Magnum brings OEM refinement paired with hardcore aftermarket strength. With a 700 lb-ft torque rating, robust synchronizers, and multiple shifter locations, it’s designed for everything from smooth street driving to aggressive performance use.
Bowler offers the optional Stage 2 upgrade, enhancing shifting precision with carbon-hybrid synchros, Vespel pads, upgraded 2nd gear, and a hardened 1–2 hub — perfect for Autocross and Road Race builds.
When shopping, be aware that cheaper “packages” often include off-brand components. Bowler uses only premium parts to give you the reliability, shifting feel, and longevity you expect from a premium drivetrain conversion.
Gear Ratios:
1st: 2.97
2nd: 2.10
3rd: 1.46
4th: 1.00
5th: 0.74
6th: 0.50
TUET11012
Instructions
Original: $3,545.00
-65%$3,545.00
$1,240.75Description
The wide-ratio version of the legendary Tremec T-56 Magnum. Perfect for LS-powered street cars, cruisers, and high-horsepower builds needing massive torque capacity with relaxed highway RPM.
Features:
- Rated for 700 lb-ft torque
- Wide-ratio gear set (2.97 / 2.10 / 1.46 / 1.00 / 0.74 / 0.50)
- 26-spline input, 31-spline output
- Multiple shift stub locations
- Single-rail shifter design
- Mechanical OR electronic speedometer compatible
- Reverse light switch + reverse lockout built in
- 3-piece synchronizer assemblies
- Optional Stage 2 upgrade available
- Factory Tremec & Bowler 1-year warranty
Fitment:
- GM LS engines (LS1, LS2, LS3, LS6, LS7, LSX)
- Works with GM Magnum bellhousings
- Compatible with standard LS clutch systems
- Console fitment possible using relocation kits
- Not a direct bolt-in for OE 4th-gen/5th-gen cars (custom install required)
What’s Included:
- Tremec T-56 Magnum TUET11012 wide-ratio transmission
- 1-year Tremec & Bowler warranty
- Standard shift position (adjustable)
- Optional accessories listed above (fluid, mount, yokes, hydraulics, bellhousing)
Description:
The Tremec T-56 Magnum TUET11012 is the wide-ratio version of Tremec’s most sought-after 6-speed manual transmission. Ideal for GM LS swaps, pro-touring builds, and high-performance street cars, the wide-ratio gearing provides excellent street drivability with deep overdrive for low cruising RPM and improved MPG.
Engineered from the same DNA as the TR-6060 used in supercars like the C6 ZR1 and Viper ACR, the Magnum brings OEM refinement paired with hardcore aftermarket strength. With a 700 lb-ft torque rating, robust synchronizers, and multiple shifter locations, it’s designed for everything from smooth street driving to aggressive performance use.
Bowler offers the optional Stage 2 upgrade, enhancing shifting precision with carbon-hybrid synchros, Vespel pads, upgraded 2nd gear, and a hardened 1–2 hub — perfect for Autocross and Road Race builds.
When shopping, be aware that cheaper “packages” often include off-brand components. Bowler uses only premium parts to give you the reliability, shifting feel, and longevity you expect from a premium drivetrain conversion.
Gear Ratios:
1st: 2.97
2nd: 2.10
3rd: 1.46
4th: 1.00
5th: 0.74
6th: 0.50
