Product Overview
American Powertrain Tremec T-56 Magnum manual transmissions and installation kits are designed to withstand up to 700 ft.-lbs. of torque. Their gears feature substantially increased face widths and 2-piece laser-beam welded construction, allowing for greater control of the tooth angles, pitch, and alignment. The transmissions also feature a bolstered one-piece countershaft to resist distortion, and a stronger input shaft. Their new synchronizers feature fine tooth angles, redesigned shift forks, and an extensively modified transmission case to prevent leaks under high-stress conditions and increase overall power-handling capabilities.
Kits include:
* Cryo-hardened steel driveshaft slip yoke with 1330 style U-joint
* Mechanical speedometer conversion
* VSS wiring harness for electronic speedometer of EFI ECU
* Rolled tapered steel transmission tunnel patch
* Reverse light wiring, weather seal harness, non-polar
* Reverse lockout wiring harness
* ISO-X ballistic, low-profile transmission mount
* Steel roller pilot bearing
* White shift knob with black 6-speed shift pattern
- Number of Gears:Six
- Input Shaft Diameter:1.125 in.
- Input Spline Quantity:26
- Output Shaft Spline Quantity:31
- Bellhousing Included:No
- Yoke Included:Yes
- Shifter Included:Yes
- First Gear Ratio:2.66:1
- Second Gear Ratio:1.78:1
- Third Gear Ratio:1.30:1
- Fourth Gear Ratio:1.00:1
- Fifth Gear Ratio:0.80:1
- Sixth Gear Ratio:0.63:1
- Case Material:Aluminum
- Crossmember Included:Yes
- Crossmember Material:Aluminum
- Crossmember Finish:Natural
- Transmission Mount Included:Yes
- Transmission Mount Type:Polymer
- Transmission Tunnel Patch Included:No
- Pilot Bushing Included:Yes
- Pilot Bushing Material:Steel
- Pilot Bushing Type:Roller
- Speedometer Cable and Gear Included:No
- Backup Light Connector Harness Included:Yes
- Mounting Hardware Included:Yes
- Fabrication Required:No
- Quantity:Sold as a kit.
- Notes:X-Factor aluminum modular crossmember, 1000 HP certified, offers clearance for 3.5 in. diameter exhaust systems. Designed for electronic or mechanical speedometers (7-tooth). 700 ft.-lbs. torque capacity. Requires bellhousing adapter or engine specific bellhousing. Shifter stick not included.
