FORD TKX 5 Speed Transmission for Small Block Ford



  • Gear ratio 2.87, 1.89, 1.28, 1 .68od
  • 26 spline input, 31 spline output Shafts
  • Mechanical and Analog Electric speedo drive
  • Torque rated for 600ft/lbs/ 8000rpm shifting


FORD 5 Speed TKX Transmission

Product Features

  • All new Slim End loading case designed for superior strength and greater tunnel clearance.
  • Sintered carbon/bronze-Hybrid triple cone synchro’s with a non-leading tooth profile
  • Wide gear ratio (2.87, 1.89, 1.28, 1.00, .68) high-performance applications Rated at 600+ft/lbs
  • Utilizes Ford TKO bolt pattern 7.2″ length input shaft (with a short input shaft option can be bolt to a Ford wide pattern 3-4 speed bellhousings )
  • 26-spline input shaft with a 31 spline output shaft for added strength.
  • Ford .670 pilot tip and 1.430″ OD throwout bearing guild tube.
  • Robust design with an internal 3-rail shift system & steel shift forks.
  • All gears & shafts made from special grade steel (ASTM 4615) providing increased torque carrying capacity.
  • Single-piece countershaft provides an increased torque carrying capacity
  • Tapered roller bearings on input, output, and counter shafts improve performance (reduced noise factor) with caged needle bearing on the main shaft.
  • Equipped with a high-performance short-throw billet aluminum shifter that isolates road noise, while providing clean crisp shifts.
    (Optional offset MDL shifter available for even more custom fit)
  • New smaller mid-position shifter mounting base reduced footprint
  • Built-in reverse light switch on the left side
  • Cruise control safety-switch location on the right side of the TKX.
  • Rear main-shaft support bushing moved from tail closer to the gearbox provides better support.
  • All mating surfaces are sealed with gaskets
    If you are making over 400-hp and need an update from your four-speed this is the transmission for you.

TKX offers even more:

  • Three shifter locations standard. (For the Mid position, additional kit required)
  • Ford Mechanical 7 tooth speedometer cable drive gear
  • OSS two-wire Analog speedometer sensor built-in.
  • Reduce engine rpm to a level that makes it fun to drive besides enhancing fuel efficiency.


Lubricant Specifications

  • For all Tremec 5-Speed models, the recommended oils are:
  • Amzoil ATF or Synchromesh
  • Tremec High-Performance manual transmission Fluid (HP-MTF)
  • GM Synchromesh
  • Mobil 1 Synthetic ATF.
  • Fluid capacity is 2.7 quarts / 2.6 Liters.


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