TREMEC is pleased to announce the release of the new TKX, a 5-speed RWD manual transmission developed solely for the aftermarket. For the development of the new transmission, TREMEC engineers took a forward-looking approach to finding the best and most efficient solution. This included universal packaging, excellent shifting performance, and extreme durability. The end result is superior shift-ability with smooth shifts at high RPMs through the use of multi-cone synchronizers and hybrid synchronizer rings. At the same time, noise, vibration and harshness (NVH) performance is optimized with a gear layout to best control stress levels, while providing structural stiffness with a ribbed, 3-piece aluminum housing. Durability is further optimized with oversized gear widths, gaskets at all flanges and caged needle bearings in all gear positions. Whether restoring or upgrading a classic muscle car or a 1930s-era roadster coupe, the new TREMEC TKX 5-speed RWD manual transmission delivers a top-quality drivetrain solution.

  • 600 lb.-ft. of torque capacity; capable of engines speeds of 8,000 RPMs with shifts at 7,500 RPMs.
  • Available in multiple gear ratio configurations (See specifications).
  • Designed for multiple applications with three shifter locations.
  • Compact, end-loaded design provides clearance in most transmission tunnels without floor modifications.
  • Increased case strength with three-piece aluminum housing provides outstanding structural stiffness.
  • Gaskets at all flanges simplifies installation and eliminates fluid leaks.
  • Superior shift-ability through use of multi-cone synchronizers and hybrid synchronizer rings made of sintered bronze and carbon
  • All gears and shafts made from special grade steel (ASTM 4615), providing increased torque carrying capacity.
  • Equipped with a high-performance short-throw billet aluminum shifter that isolates road noise, while providing clean, crisp shifts.
  • Robust design with internal three-rail shift system and steel shift forks.
  • Wide gear width increases gear life and torque capacity.
  • Separate GM and Ford case patterns and input configurations. Integrated GM and Ford transmission mount patterns
For more information and FAQ, head over to TREMEC

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Item# Description
TCET 17722

Transmission: Manual: Tremec TKX 5 Speed: 1-1/8x26: .81 5th:GM:V8:

TCET 17765

Transmission: Manual: Tremec TKX 5 Speed: 1 1/8x26: .68 5th: Ford: V8:

TCET 17805

Transmission: Manual: Tremec TKX 5 Speed: 1-1/8x26: .68 5th:GM:V8:

TCET 18083

Transmission: Manual: Tremec TKX 5 Speed: 1-1/8x26: .72 5th:GM:V8:

TCET 18084

Transmission: Manual: Tremec TKX 5 Speed: 1 1/8x26: .81 5th: Ford: V8:

TCET 18085

Transmission: Manual: Tremec TKX 5 Speed: 1 1/8x26: .72 5th: Ford: V8:

TCET 18086

Transmission: Manual: Tremec TKX 5 Speed: 1 1/16 In. 10-Spline: .72 5th, Ford: V8:


TKX Installation Instructions

TKX Parts List

TKX Brochure

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 The customer (end user) must contact TREMEC through the TREMEC website at  when a warrantable issue is encountered.
A product concern form can be filled out at their Support Center in the Aftermarket section. 
The form is located at:
TREMEC will contact the customer usually in 48 hours or less to initiate the warranty process.
TREMEC can be reached by phone at: 800-401-9866.
TREMEC can also be contacted by email at: [email protected].
TREMEC Warranty: Download Here

McLeod Racing Limited Warranty

McLeod Racing LLC, products are warranted to be free from defects in material and workmanship for the period of ninety (90) days, from the date of purchase. McLeod does not warrant or make any representations concerning its products when not installed and/or used strictly in accordance with the manufacturer’s instructions for such; installation and operation, and in accordance with good installation and maintenance practices of the automotive industry. Products purchased used do not carry a warranty. This warranty is to the original purchaser and is nontransferable.
McLeod Racing LLC will not be held liable for the labor charges and other intangible or consequent losses that might be claimed as a result of the failure of any part, nor shall it be liable for damages or injury to persons or property resulting from the misuse or improper installation of any part subject to this warranty.
No merchandise may be returned for any reason unless prior return merchandise authorization number (RMA) has been obtained from McLeod. An RMA number may be obtained via or by calling McLeod directly.
McLeod Racing LLC reserves the right to examine all parts returned for warranty claim to determine whether or not any such part has failed because of a defect in material or workmanship. McLeod's obligation under this warranty shall be limited to repairing, replacing or crediting, at its option, any part found to be defective. All products returned to McLeod for warranty inspection must be prepaid by the customer under this warranty.
In a racing environment, the type of stress placed on automotive parts can vary dramatically by the type of use, driving style, track preparation, differing tire style and other variables that are out of McLeod's control. For this reason, any parts used in a racing environment shall be void of any warranty either expressed or implied.
There are no other warranties, either expressed or implied including, but not limited to, warranty of merchantability, and warranty of fitness for a particular purpose which extend beyond those set forth in the preceding paragraphs. This warranty shall be interpreted and applied in accordance with California law.
For any changes or updated versions of the warranty described above, please refer to before installation of product.


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