Product Summary

TKO, TKX, 5-Speed Transmission Speeds

  • Wide ratio gearing ideal for street performance and versatile driving
  • 600 lb-ft torque capacity with smooth shifts up to 7,500+ RPM
  • Compact, end-loaded design fits most tunnels without modification
  • Three selectable shifter locations for flexible installation
  • Multi-cone synchronizers with hybrid bronze/carbon rings for superior shift quality
See more details

Key Specs

MFG. Part #TCET18083
BrandTREMEC
Transmission Speeds5-Speed
Input Shaft Spline Count26
Input Shaft Diameter1.125"
See more specs

Need To Know

Quick and Easy Returns

Return Policy

TREMEC TCET18083 Details

The long-awaited next evolution of TREMEC’s 5-speed lineup is here. The TCET18083 TKX Wide Ratio 5-speed manual transmission is purpose-built for the aftermarket, delivering a compact, high-performance solution for classic Chevy builds, restorations, and custom applications requiring modern strength and shift quality.

Engineered from the ground up, the TKX improves on previous designs with a focus on compact packaging, superior shift performance, and exceptional durability. Its end-loaded design allows for easy installation with minimal or no tunnel modifications, while multiple shifter location options provide flexibility across a wide range of vehicle platforms.

The wide-ratio gearing offers excellent acceleration, drivability, and cruising capability, making it ideal for street performance builds. With multi-cone synchronizers and hybrid synchro rings, the TKX delivers smooth, consistent shifts even at high RPM, while a robust internal design ensures long-term durability under demanding conditions.

  • Wide ratio gearing ideal for street performance and versatile driving
  • 600 lb-ft torque capacity with smooth shifts up to 7,500+ RPM
  • Compact, end-loaded design fits most tunnels without modification
  • Three selectable shifter locations for flexible installation
  • Multi-cone synchronizers with hybrid bronze/carbon rings for superior shift quality
  • High-strength 3-piece aluminum case with ribbed design for added rigidity
  • Short-throw billet shifter with excellent isolation and crisp engagement
  • GM bolt pattern and mount configuration for easy compatibility

Gear Ratios:

3.27 | 1.98 | 1.34 | 1.00 | 0.72 (Rev 3.00)

Warranty Information

For any warranty issues with TREMEC transmissions, please contact TREMEC directly. TREMEC provides a Product Support Form to be filled out and submitted to them, after which TREMEC will contact you directly to complete the warranty process.

TKX Service Manual

TREMEC Transmission Limited Warranty (PDF)

TREMEC Product Support Form (Link to TREMEC's Website)

Speedway Motors cannot facilitate the return of defective Tremec products as they have requested to handle these directly with the consumer. For defective product support and Return Authorization, please contact Tremec at +1 (800) 401-9866 (USA) or by ema

TREMEC TCET18083 Specifications

KEY SPECS
MFG. Part #TCET18083
BrandTREMEC
Transmission Speeds5-Speed
Input Shaft Spline Count26
Input Shaft Diameter1.125"
GENERAL
Torque600 ft./lbs.
Output Shaft Spline Diameter1.375"
Output Shaft Spline Count31
Case MaterialAluminum
First Gear Ratio3.27:1
Gear Ratio (2nd)1.98:1
Gear Ratio (3rd)1.34:1
Gear Ratio (4th)1.00:1
Gear Ratio (5th)0.72:1
Bellhousing IncludedNo
Yoke IncludedNo
GTIN Code041969292037
Shifter IncludedNo
Gear Ratio (Reverse)2.56:1
Sold in QuantityEach
Yoke StyleSlip On
Shifter StyleLinkage operated

Ratings & Reviews

5

2 Reviews

Overall Assessment

Customers highly value our Tremec 5-Speed transmission for its versatility and dependability, consistently choosing it for various car models from a '34 Ford 3-Window to a '30 Model A Ford Coupe. With features such as a 3" offset and white lightening shifter, this product boasts superior quality, practicality, and usability. Known for enhancing vehicle performance, it outclasses competitors' offerings, reinforcing customer loyalty and confidence in our product. Customers specifically note its easy installation, affirming the product's excellent design.

5

2 reviews

5

2

4

0

3

0

2

0

1

0

Filter by Ratings

VERY NICE TRANSMISSION

5.0

4 years ago

slingshot

95076

Verified

very happy with my new transmission. i used the 3" offset, white lightening shifter. put in right in my existing shifter hole.

Would Recommend

This is the third Tremec transmission that I have purchased.

5.0

4 years ago

NONE; N/A.

Fresno, CA. 93704-1908

Verified

One Tremec 5-Speed transmission installed in 1934 Ford 3-Window with LT-1 Chevy engine; another Tremec 5-Speed tranny installed in 1930 Model A Ford Coupe with Pinto 2.0L engine; another Tremec 5-Speed tranny in 1934 Ford Cabriolet (under construction).

Would Recommend

Showing 2 of 2 reviews

Questions & Answers

5 Questions • 5 Answers

What is the diameter of the pilot shaft tip?

by John

• 2 years ago

1 answer

Will item #910133031 work with this tranny?

by John

• 2 years ago

1 answer

Does this transmission come with the vss?

by John

• 2 years ago

1 answer

Is this a mechanical speedometer or electrical ?

by Rustydusty

• 3 years ago

1 answer

what is the length of this transmission.?

by Ron

• 4 years ago

1 answer

5 of 5 questions shown

Fitment

  • 2-Piece Rear Main Chevy 400

  • 2-Piece Rear Main Chevy 400

  • 2-Piece Rear Main Chevy 400

  • 2-Piece Rear Main Chevy 400

  • 2-Piece Rear Main Chevy 400

  • 2-Piece Rear Main Chevy 400

  • 2-Piece Rear Main Chevy 400

  • 2-Piece Rear Main Chevy 400

  • 2-Piece Rear Main Chevy 400

  • 2-Piece Rear Main Chevy 400

  • 2-Piece Rear Main Chevy 400

  • 2-Piece Rear Main Chevy 400

  • 2-Piece Rear Main Chevy 400

  • 2-Piece Rear Main Chevy 400

  • 2-Piece Rear Main Chevy 400

  • 2-Piece Rear Main Chevy 400

  • 2-Piece Rear Main Chevy 400

  • 2-Piece Rear Main Chevy 400

  • 2-Piece Rear Main Chevy 400

  • 2-Piece Rear Main Chevy 400

  • 2-Piece Rear Main Chevy 400

  • 2-Piece Rear Main Chevy 400

  • 2-Piece Rear Main Chevy 400

  • 2-Piece Rear Main Chevy 400

  • 2-Piece Rear Main Chevy 400

  • 2-Piece Rear Main Chevy 400

  • 2-Piece Rear Main Chevy 400

  • 2-Piece Rear Main Chevy 400

  • 2-Piece Rear Main Chevy 400

  • 2-Piece Rear Main Chevy 400

  • 2-Piece Rear Main Chevy 400

  • 2-Piece Rear Main Chevy 400

  • 2-Piece Rear Main Chevy 400

  • 2-Piece Rear Main Chevy 400

  • 2-Piece Rear Main Chevy 400

  • 2-Piece Rear Main Chevy 400

  • 2-Piece Rear Main Chevy 400

  • 2-Piece Rear Main Chevy 400

  • 2-Piece Rear Main Chevy 400

  • 2-Piece Rear Main Chevy 400

Customer Impersonation Script