MDL modified Tremec GM TKX 5-Speed, Front Shift with 1.000" + 1.500" Rearward Offset Stub
THE ALL-NEW MDL MODIFIED FRONT SHIFT POSITION TREMEC TKX 5-SPEEDThe shifter is a close-ratio custom-made piece that is now an integral part of the transmissionthis is an upgraded transmission, this isnt just a bolted-on shifter.
What do we do to the TKX:
MDL modifications bring the shifter stub up in OE positionWe achieve this by carefully machining, updating, and integrating new pieces to this must-have transmissionNot available through TREMEC.
Fits:
Chevelle, GTO, Lemans, 442, Buick-GS, Malibu BOP applications for upgrading a 3 or 4-speed manual car to a 5-speedIf your BOP is automatic or has an auto or blank floor console

Video series deep dive install TKX 5-speed into a beautiful 67 A-Body
Features:
Gear Ratios 3.27, 1.98, 1.34, 1, .72od 26 spline input, 31 spline output

Experience the MDL difference: When you purchase a complete MDL Conversion Package you get
TKX offers even more:
For all Tremec TKX 5-Speed models, the recommended oils are:
The shifter is a close-ratio custom-made piece that is now an integral part of the transmissionthis is an upgraded transmission, this isnt just a bolted-on shifter.
They are all prepared at our facility by hand to ensure quality & precision.Many hours of R&D were put forth to provide this to you our customer.
No upgraded TKX leaves here unless its right.
What do we do to the TKX:
MDL modifications bring the shifter stub up in OE positionWe achieve this by carefully machining, updating, and integrating new pieces to this must-have transmissionNot available through TREMEC.
Fits:
Chevelle, GTO, Lemans, 442, Buick-GS, Malibu BOP applications for upgrading a 3 or 4-speed manual car to a 5-speedIf your BOP is automatic or has an auto or blank floor console

Video series deep dive install TKX 5-speed into a beautiful 67 A-Body
Features:
Gear Ratios 3.27, 1.98, 1.34, 1, .72od 26 spline input, 31 spline output
MDL modifications bring the shifter stub up in OE positionWe achieve this by carefully updating and integrating new pieces to this HOT NEW must-have transmissionNot available through TREMEC
Click here to see what's differentTKX is the next generation in five speedsWith ALL NEW End-Loading DesignWhich provides such advantages as:
- a slimmer case design for great tunnel clearance
- increased case strength, and fewer case seams.

Sintered carbon/bronze-Hybrid triple cone synchroswith a non-leading tooth profile
- 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 bolt to:GM close pattern 3-4 speed bellhousings )
- 26-spline input shaft with a 31-spline output shaft for added strength.
- GM .590 pilot tip and 1.375? 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)
- A new smaller mid-position shifter mounting base reduced the 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
GM | Gear Ratios | Spline count | |||||
Item # | 1st | 2nd | 3rd | 4th | 5th | Input | output |
TCET17722 | 2.87 | 1.89 | 1.28 | 1.00 | 0.81 | 26 | 31 |
TCET17805 | 2.87 | 1.89 | 1.28 | 1.00 | 0.68 | 26 | 31 |
TCET18083 | 3.27 | 1.98 | 1.34 | 1.00 | 0.72 | 26 | 31 |
- We extend the manufacturers warranty by an extra year with a 1-year grace period.
- We have the best in the industry customer service.
- life-time technical support.
TKX offers even more:
- Three shifter locations are standard. (For the Mid position, an additional kit is required)
- Ford Mechanical 7-tooth speedometer cable drive gear
- The reluctor wheel is 17-tooth.
- OSS two-wire Analog speedometer sensor built-in.
- Reduce engine rpm to a level that makes it fun to drive besides enhancing fuel efficiency.
For all Tremec TKX 5-Speed models, the recommended oils are:
Amzoil ATF
Tremec 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