Tremec TKX Ford 5-Speed Transmission 2.87 First Gear .68 OD – TCET17765

Compact high-torque manual transmission engineered specifically for aftermarket Ford performance builds.

The Tremec TKX platform provides modern drivetrain strength with improved transmission tunnel clearance, high-RPM shift capability, and proven durability for street performance, restomod, and pro-touring applications.

This ratio configuration offers strong launch characteristics with reduced cruising RPM, making it a balanced solution for high-horsepower vehicles that require both acceleration performance and highway drivability.

Transmission Configuration

• Ford TKX case pattern
• 26-spline input shaft
• 31-spline output shaft
• Single overdrive 5-speed design
• Compact low-profile aluminum housing

Gear Ratios

1st — 2.87
2nd — 1.89
3rd — 1.28
4th — 1.00
5th — 0.68

Torque & RPM Capability

• Rated for 600 lb-ft torque capacity
• Supports engine speeds up to 8,000 RPM
• Designed for performance shifting near 7,500 RPM

Design & Performance Engineering

• Three-piece aluminum case construction increases structural rigidity
• Compact end-loaded architecture improves transmission tunnel clearance
• Multi-cone synchronizers provide smoother high-RPM gear engagement
• Internal three-rail shift system improves shift precision and durability
• Wide gear face width increases gear life and torque capacity
• Alloy steel gears and shafts manufactured from ASTM 4615 material
• Caged needle bearings reduce friction and gear end-play
• Optimized gear geometry helps control noise, vibration, and harshness
• Integrated reverse light and cruise control safety switch provisions

Fitment & Installation Advantages

• Multiple shifter location provisions for improved interior positioning
• Designed to fit many performance applications with minimal tunnel modification
• Ford-specific case configuration for proper drivetrain alignment
• Integrated transmission mount pattern provisions

Technical Specifications

Transmission Type — 5-Speed Manual Overdrive
Torque Capacity — 600 lb-ft
Input Shaft — 26 spline
Output Shaft — 31 spline
Case Construction — Aluminum 3-piece housing

Instructions

Tremec TKO & T-56 Installation Instructions