THE FORD TREMEC TKX 2.87 1st-gear/ .68od/ 26-spline inputHeavy Duty Five speed Single Overdrive Transmission


We offer a complete TKX five-speed package that is completely customizable.Contact us today for a detailed quote. Experience the MDL difference: When you purchase a complete MDL Conversion Package you get
TKX for the Generations: Article by Jim Smart

Slip Yokes In many cases, converting to a TREMEC TKX or T-56 Magnum will also warrant minor driveline modifications,such as upgrading to our 31-spline aftermarket slip yoke. Built to OEM standards, they accept 1330-style U-Joints and are designed to handle the torquefrom one of the powerful 5 or 6-speed manual transmissions.

TCET17765 2.87:1 first gear with a .68:1 OD.
IN STOCK & READY TO SHIP TKX is the next generation in five speeds, with its ALL NEW End Loading Design which provides such advantages as a slimmer case design for great tunnel clearance, increased case strength, and fewer case seams. All this and 8000 RPM shifting & 600lbs/ft. torque capacityYou can find the Dimensions of the TXK by clicking on the 'SPECS' tab below.
Short input shaft kits are available for 4-speed bellhousing applications.CLICK THIS LINK FOR MORE INFO ON 10 -SPLINE CLICK THIS LINK FOR MORE INFO ON 26-SPLINE - For wide-ratio Transmission please See MD-501-18085 - OR - MD-501-18083 for a 10-spline version Product Features
Sintered carbon/bronze-Hybrid triple cone synchroswith a non-leading tooth profile
- All new Slim End loading case designed for superior strength and greater tunnel clearance.
- Sintered carbon/bronze-Hybrid triple cone synchros with a non-leading tooth profile
- Close 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 close 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 are 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 offsetMDLshifter 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.
- The rear main-shaft support bushing moved from the tail closer to the gearbox provides better support.
- All mating surfaces are sealed with gaskets

We offer a complete TKX five-speed package that is completely customizable.Contact us today for a detailed quote. Experience the MDL difference: When you purchase a complete MDL Conversion Package you get
- We extend the manufacturers warranty by an extra year with a 1-year grace period.
- We have the best in the industry customer service.
- lifetime technical support.
- Three shifter locations are standard. (For the Mid position, an additional kit is 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 TKX 5-Speed models, the recommended oil is Dextron III ATFAmzoil ATFTremec High-Performance manual transmission Fluid (HP-MTF)Mobil 1 Synthetic ATF. Fluid capacity is 2.7 quarts / 2.6 Liters. Fluid Maintenance LINK for Tremec Transmissions
FORD | Gear Ratios | Spline count | |||||
Item # | 1st | 2nd | 3rd | 4th | 5th | Input | output |
TCET17765 | 2.87 | 1.89 | 1.28 | 1.00 | 0.68 | 26 | 31 |
TCET18084 | 2.87 | 1.89 | 1.28 | 1.00 | 0.81 | 26 | 31 |
TCET18085 | 3.27 | 1.98 | 1.34 | 1.00 | 0.72 | 26 | 31 |
TCET18086 | 3.27 | 1.98 | 1.34 | 1.00 | 0.72 | 10 | 31 |

Slip Yokes In many cases, converting to a TREMEC TKX or T-56 Magnum will also warrant minor driveline modifications,such as upgrading to our 31-spline aftermarket slip yoke. Built to OEM standards, they accept 1330-style U-Joints and are designed to handle the torquefrom one of the powerful 5 or 6-speed manual transmissions.
