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19352208 - GM LS T56 Super Magnum Transmission

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The smoothest shifting, strongest, and most versatile 6-speed aftermarket transmission.

These Chevrolet Performance Tremec T-56 manual transmissions are truly brand new from the ground up. They can withstand up to 700 ft.-lbs. of torque, with gears featuring substantially increased face widths and 2-piece laser-beam welded construction, allowing for greater control of the tooth angles, pitch, and alignment.


  • Exterior case similer to forth-generation F-body with stronger, high-capacity gear sets, input shaft and output shaft used in the Tremec TR6060
  • 26-spline input shaft
  • 31-spline output shaft
  • Slip-yoke design
  • 40-tooth reluctor ring that's necessary for use with electronic vehicle speed sensors used with Chevrolet Performance controllers
  • Kit includes shifter handle and Chevrolet Performance-logo ball-type shift knob
  • New synchronizers featuring fine tooth angles
  • Bolstered one-piece countershaft to resist distortion
  • Re-designed shift forks
  • An extensively modified transmission case to prevent leaks under high-stress conditions and increase overall power-handling capabilities
  • Street - (1st-2.66, 2nd-1.78, 3rd-1.30, 4th-1.00, 5th-0.80, 6th-0.63)

T56 Installation Items
Complete Installation Packages

Application List


Shipping Information

  • Item Requires Shipping
  • 250.0 lbs.
  • W21.8000” x H21.3000” x L39.1000”
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  • This item ships in its own box.
  • This item will require a special quote for shipping charges.
  • FREE 48 State Shipping

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