The TKX is a 5-speed RWD manual transmission developed solely for the aftermarket.
For the development of the new transmission, TREMEC engineers took a forward-looking approach to find the best and most efficient solution. This included universal packaging, excellent shifting performance, and extreme durability.
The result is superior shift-ability with smooth shifts at high RPMs using multi-cone synchronizers and hybrid synchronizer rings. At the same time, noise, vibration, and harshness (NVH) performance are optimized with a gear layout to best control stress levels, while providing structural stiffness with a ribbed, 3-piece aluminum housing. Durability is further optimized with oversized gear widths, gaskets at all flanges, and caged needle bearings in all gear positions.
Whether restoring or upgrading a classic muscle car or a 1930s-era roadster coupe, the new TREMEC TKX 5-speed RWD manual transmission delivers a top-quality drivetrain solution.
TKX Features at a Glance
600 lb.-ft. of torque capacity; capable of engine speeds of 8,000 RPMs with shifts at 7,500 RPMs.
Available in multiple gear ratio configurations (see specifications)
Designed for multiple applications with three shifter locations
Compact, end-loaded design provides clearance in most transmission tunnels without floor modifications
Increased case strength with three-piece aluminum housing provides outstanding structural stiffness
Gaskets at all flanges simplify installation and eliminate fluid leaks
Superior shift-ability through use of multi-cone synchronizers and hybrid synchronizer rings made of sintered bronze and carbon
All gears and shafts are made from special grade steel (ASTM 4615), providing increased torque carrying capacity
Equipped with a high-performance short-throw billet aluminum shifter that isolates road noise, while providing clean, crisp shifts
Robust design with an internal three-rail shift system and a combination of aluminum and steel shift forks
Wide gear width increases gear life and torque capacity
Separate GM and Ford case patterns and input configurations
Integrated GM and Ford transmission mount patterns