American Powertrain TREMEC TKX 5-Speed Transmission - Engine Builder Magazine

American Powertrain TREMEC TKX 5-Speed Transmission

Designed to fit classic muscle cars and custom builds, the TKX has a compact, streamlined case. The triple cone synchronizer design carried over from the Magnum makes for smoother shifts.

The TREMEC TKX is the new 5-speed in town. TREMEC has historically based their aftermarket transmissions on their highly successful OE models such as the Magnum T-56 and the T-5; the TKX is a brand new design made from the ground up as a strictly aftermarket transmission.

Designed to fit classic muscle cars and custom builds, the TKX has a compact, streamlined case. The triple cone synchronizer design carried over from the Magnum makes for smoother shifts. Capable of shifting at 7,500 rpm, the TKX also can easily handle 600 ft.-lbs. of torque. The TKX runs both electronic and mechanical speedometers and its electronic speedo output doubles as a VSS.

American Powertrain provides a mid-shift conversion as well as a new line up of their famous White Lightning shifter upgrades. The White Lightning Shifter features over 60 additional shifter locations to help get the new TKX set up for your muscle car, truck or custom project. American Powertrain also produces highly customized direct fit versions of the TKX for classic Corvettes and Mopars.  The TKX is covered by a 12-month factory warranty which American Powertrain backs up with their own two year warranty. 

Additional features include:

  • Designed for multiple applications with little to no floor pan modifications
  • Compact, end-loaded design provides the perfect solution for custom builds
  • Outstanding shift-ability at high RPMs (up to 7,500) to match modern, high-performance
    engines
  • 600 pound-foot (lb.-ft.) of torque capacity
  • Single overdrive reduces engine wear and fuel consumption for comfortable roadway driving 

For more information: view this video, or visit americanpowertrain.com.

You May Also Like

Hot Shot’s Secret Green Diamond 0W-20 Light-Duty Diesel Oil

Hot Shot’s Secret Green Diamond is formulated for use in GM Duramax 2.7 and 3.0 diesel engines that require Dexos D 0W-20 specification.

Hot Shot’s Secret now offers a new 0W-20 light-duty diesel motor oil that is ideal for the GM Duramax 2.7L and 3.0L engine, or any diesel engine that requires a Dexos D 0W-20 specification. Hot Shot’s Secret 0W-20 Green Diamond Fleet is a 100% fully synthetic oil using only Group III base oils and is infused with Hot Shot’s Secret’s patented FR3 nano technology that improves shear stability, film strength and friction reduction.   

PRT’s 30 New Complete Strut Assemblies

The new items represent more than 10 Million vehicles in new coverage and come to expand the PRT portfolio in North American Aftermarket.

NGK MOD Series Ignition Coils

Modern high-performance engines need a bigger spark to make power. NGK’s MOD Series Ignition Coils fit the bill.

LS Engine Flatout Gaskets

Flatout Gaskets LS valve cover gaskets are available in paper/silicone in 0.60″ or 0.120″ thicknesses or steel/silicone laminate in 0.50″ or 0.100″ thicknesses.

Engine Ice’s Ice Water Racing Coolant

Engine Ice’s Ice Water provides a significant reduction in surface tension, moving heat away from the engine fast.

Other Posts

Hot Shot’s Secret Black Diamond Outlaw 10W-30 Synthetic Engine Oil

Formulated for extreme protection and high TBN levels, ideal for street or strip.

Eneos Racing Street 0W-50 Motor Oil

These racing formulations are created using a history of OEM innovation in conjunction with racing partners around the world.

Dillon Manufacturing Carbinite Coating for Milling Performance

Dillon’s Carbinite coating is ideal for hard or soft jaws, especially Vise Jaws and Step Jaws used for clamping applications.

Summit Racing’s Speedmaster Top End Engine Kits

Kits include a pair of assembled aluminum cylinder heads, an intake manifold, aluminum roller rocker arms, cast aluminum valve covers, and gaskets.