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Unleash Maximum Performance for Your Ford Build – 600 lb-ft of Torque Handling, .81 Overdrive & Fast Shifts!

If you are ready to take your Ford-powered road racer, aggressive street machine, or high-performance restomod to the next level, the TREMEC TKX 5-Speed Transmission (TCET18084) is the specialized drivetrain upgrade your project deserves. Engineered from the ground up for serious performance, road-course reliability, and modern drivability, this robust TKX 5-speed manual transmission combines a high-strength 26-spline input shaft with a tight, performance-oriented .81 overdrive gear. It is built to reliably handle up to 600 lb-ft of torque and shift cleanly at a screaming 7,500 RPM. Whether you are maintaining your engine's power band on the track or building a high-revving street car with aggressive rear gears, the TKX delivers power where it matters most.

What are the Specifications of the TREMEC TKX TCET18084?

• Part Number: TCET18084
• Ford-Specific Input Shaft: 26-Spline (Requires a high-strength 26-spline clutch disc)
• Output Shaft: 31-Spline
• Torque Capacity: 600 lb-ft
• RPM Capability: 7,500 RPM shift points
• Shifter Flexibility: Three mounting locations for flexible fitment (front shift kits available from SST!)
• Warranty Protection: 12-Month Factory Warranty backed directly by TREMEC

Gear Ratios:

• 1st: 2.87
• 2nd: 1.89
• 3rd: 1.28
• 4th: 1.00
• 5th: 0.81 (Your performance-focused, road-racing overdrive)

How Does the TREMEC TKX Improve Shift Quality and Fitment?

The TREMEC TKX was specifically engineered to solve the fitment and shifting limitations of older transmission designs. By blending brute strength with modern, smooth-shifting technology, it delivers a driving experience that feels right at home on both local streets and competitive tracks.

• Streamlined Fitment: The compact, end-loaded design easily fits most tight transmission tunnels without requiring extensive floor pan modifications.
• Maximum Rigidity: A heavy-duty, 3-piece aluminum housing minimizes case flex to keep your gears perfectly aligned under load.
• Crisp, Precise Shifts: The high-performance, billet aluminum short-throw shifter delivers tight, clean gear changes while significantly reducing throw distance and isolating road noise.
• Advanced Synchronizers: Engineered with multi-cone synchronizers featuring hybrid sintered bronze and carbon rings, allowing you to grab the next gear effortlessly at high RPM.
• Quiet, Smooth Operation: Optimizing the gear layout drastically minimizes Noise, Vibration, and Harshness (NVH), ensuring a quiet ride even when you're pushing high revs.
• Leak-Free Reliability: High-quality gaskets at all mating surfaces ensure a clean, leak-free installation in your garage or shop.
• Integrated Electronics: Includes a built-in reverse light switch and a cruise control safety switch to seamlessly integrate with today’s restomod wiring setups.

Why Choose the TKX Over a Traditional T5 or 4-Speed Transmission?

The TREMEC TKX isn’t just a replacement part—it’s a complete drivetrain transformation. Traditional 4-speeds leave you without a performance 5th gear, while overworked factory T5s simply cannot handle modern, high-horsepower V8 builds. Choosing the 26-spline input shaft option gives you significantly more shear strength at the clutch interface compared to older 10-spline designs. Furthermore, the specialized road-race ratio configuration keeps your engine directly in its power band instead of dropping too low on the straightaways.

With modern internal geometry, OEM-level engineering, and track-proven durability, the TKX 5-speed is the definitive solution for high-torque Ford projects. It is the ideal gearbox upgrade for classic Mustangs, Falcons, Fairlanes, road race cars, and Pro-Touring builds. Whether you want to maintain acceleration through 5th gear with an .81 overdrive or need a transmission that can reliably back up a high-power engine, the TKX is built to win from the street to the track.

Why should you purchase your new TREMEC TKX from Silver Sport Transmissions?

Get the perfect balance of performance, durability, and modern drivability in a single, bolt-in package from the experts at Silver Sport Transmissions.

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• Expert Technical Support Available from the Silver Sport Transmissions Team
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