TREMEC TCET18086 TKX 5-Speed Manual Transmission Wide Ratio Ford

The TREMEC TCET18086 TKX 5-Speed Manual Transmission is a premium wide-ratio manual transmission engineered specifically for Ford rear-wheel-drive applications. Featuring a 3.27:1 first gear, this model provides exceptional low-speed acceleration, making it an excellent choice for street-driven muscle cars, hot rods, classic trucks, and pro-touring builds equipped with taller rear axle gears.

Built from 100% brand-new OEM-quality components, the TKX is rated to handle 600 lb-ft of torque while delivering smooth, precise shifts at engine speeds up to 7,500 RPM. Its compact aluminum case offers significantly improved transmission tunnel clearance compared to previous TKO models, allowing for easier installation in many classic Ford vehicles. The 0.72:1 overdrive fifth gear lowers highway cruising RPM, reducing engine wear, improving fuel economy, and providing a quieter driving experience.

The TCET18086 is an ideal upgrade for classic Mustangs, Falcons, Fairlanes, Broncos, F-Series trucks, and custom Ford-powered street machines requiring outstanding strength, reliability, and modern drivability.

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Features

• Genuine TREMEC TKX 5-Speed Manual Transmission
• Part Number: TCET18086
• Wide-ratio gear set for excellent street performance
• Designed for Ford rear-wheel-drive applications
• Rated for 600 lb-ft of torque
• Smooth shifting up to 7,500 RPM
• Supports engine speeds up to 8,000 RPM
• Lightweight ribbed aluminum case
• Compact design for improved transmission tunnel clearance
• Fully synchronized forward gears
• Three selectable shifter locations
• Mechanical and electronic speedometer outputs
• Low noise, vibration, and harshness (NVH)
• Ideal for muscle cars, hot rods, classic trucks, and pro-touring builds

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Gear Ratios

• 1st Gear: 3.27:1
• 2nd Gear: 1.98:1
• 3rd Gear: 1.34:1
• 4th Gear: 1.00:1
• 5th Gear: 0.72:1
• Reverse: 3.00:1

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Specifications

• Brand: TREMEC
• Manufacturer Part Number: TCET18086
• Transmission Model: TKX
• Transmission Type: 5-Speed Manual
• Application: Ford RWD
• Torque Capacity: 600 lb-ft
• Maximum Engine Speed: 8,000 RPM
• Shift Capability: 7,500 RPM
• Case Material: Aluminum
• Approximate Dry Weight: 99 lbs
• Input Shaft Spline Count: 10
• Output Shaft Spline Count: 31
• Shifter Positions: 3
• Speedometer Output: Mechanical and Electronic
• Fluid Capacity: Approximately 2.7 Quarts
• Recommended Fluid: TREMEC High Performance Manual Transmission Fluid
• Bellhousing Included: No
• Shifter Included: Stub Shifter
• Flywheel Included: No
• Clutch Included: No

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Recommended Applications

Ideal for:

• Ford Mustang
• Ford Falcon
• Ford Fairlane
• Ford Torino
• Ford Maverick
• Ford Ranchero
• Ford Bronco
• Ford F-100
• Street Rods
• Pro-Touring Builds
• Classic Muscle Cars
• Custom Ford Projects

Compatible with Ford small-block and Windsor engine applications when paired with the appropriate bellhousing, clutch, and flywheel.

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Installation Requirements

Installation may require:

• Ford-compatible bellhousing
• Performance clutch kit
• Flywheel
• Pilot bearing
• Transmission mount
• Crossmember
• 31-spline slip yoke
• Driveshaft modifications (depending on application)
• Hydraulic or mechanical clutch linkage
• TREMEC High Performance Manual Transmission Fluid

Professional installation is recommended to ensure proper drivetrain alignment and long-term reliability.

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Package Includes

• TREMEC TCET18086 TKX 5-Speed Manual Transmission
• Rear-Mount Stub Shifter
• Reverse Light Switch
• Backup Light Wiring Connector
• Inspection Cover
• Manufacturer Documentation

Additional installation components such as the bellhousing, clutch assembly, flywheel, crossmember, transmission mount, and driveshaft are sold separately unless included in a complete conversion kit.

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Warranty

The TREMEC TCET18086 TKX 5-Speed Manual Transmission is backed by a 1-Year Limited Warranty, covering defects in materials and workmanship under normal use and proper installation.