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Purchase GM Tremec TKX 5-speed Transmission, 2.87 1st-gear, .81 od

GM Tremec TKX 5-speed Transmission, 2.87 1st-gear, .81 od

SKU: MD-501-17722


$2,895.00 Original Price
Price excludes tax
 
Gear ratios 2.87, 1.89, 1.28, 1, .82 26 spline input, 31 spline output Shafts Mechanical and Analog Electric speedo drive Torque rated for 600ft/lbs. / 8000 rpm shifting IN STOCK & READY TO SHIP

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Tremec TKX GM Five-speed

IN STOCK & READY TO SHIP

TCET1772 RR - 2.87:1 first gear with a .82:1 OD. (Just One of 3 gear set available)


THE HOT MUST HAVE TRANSMISSION from TREMECTKX 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.Fits GM A-bodies without tunnel modifications - Chevelle / GTO / Cutlass / Nova / Camaro and many others. All this and 8000 RPM shifting & 600lbs/ft. torque capacity

You can find the Dimensions of the TXK by clicking on the 'SPECS' tab below.

Product Features

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, .82) high-performance applications Rated at 600+ft/lbs
  • Uses the same bolt pattern as GM 3 & 4 speed Muncie bellhousing.
  • 26-spline input shaft with a 31 spline output shaft for added strength.
  • GM .590 pilot tip and 1.375" OD throwout bearing guide 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 stamped-steel mid-position cover with four M6 x 18 countersunk socket screws.
  • 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.

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.
    • life-time technical support.
TKX offers even more:
  • Three shifter locations standard. (For the Mid position, additional kit required)
  • Ford Mechanical 7 tooth speedometer cable drive gear(that can be adapted to GM)
  • 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 SpecificationsFor 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


GM

Gear Ratios

Spline count

Item #

1st

2nd3rd4th5thInput

output

TCET17722

2.87

1.891.281.000.8126

31

TCET17805

2.87

1.891.281.000.6826

31

TCET18083

3.27

1.981.341.000.7226

31

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.

Specifications

Shifter Side Shift
No
Gear Ratio 1st Gear
2.87
Gear Ratio 2nd Gear
1.89
Gear Ratio 3rd Gear
1.28
Gear Ratio 4th Gear
1
Gear Ratio 5th Gear
0.81
Input spline count
26
Oil Type Requirements
ATF Dextron III
Output spline count
31
Transmission
TKX

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TKX 5 Speed Chevelle Project
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Jaime Vasquez (California) | June 25th, 2025
Hopefully you can steer me in the right path to a great build
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