TREMEC TKX 5-Speed GM 26 Spline 0.81 OD - TCET17722

TREMEC TKX 5-Speed GM 26 Spline 0.81 OD - TCET17722
CLOSE RATIO 2.87, 1.89, 1.28, 1.00, 0.81, 2.56R
Part # TCET17722

$2,895.00

$2,895.00

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

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Upgrade Your GM Build to a TREMEC TKX 5-Speed – 600 lb-ft Torque, Performance .81 Overdrive & 7,500 RPM Shifts!

If you are ready to transform the driving dynamics of your GM-powered road racer, pro-touring machine, or high-performance street build, the TREMEC TKX 5-Speed Manual Transmission (TCET17722) is the ultimate close-ratio drivetrain solution. Engineered specifically for the high-performance aftermarket, this robust GM-specific TKX 5-speed combines an upgraded 26-spline input shaft with a tight, performance-oriented .81 overdrive gear. It is built from the ground up to reliably handle 600 lb-ft of torque and execute crisp, flawless shifts at a screaming 7,500 RPM. Whether you are optimizing your cruising RPM to match a tall rear axle ratio or building a high-performance track car, this close-ratio manual transmission delivers modern strength and precision driving engagement.


What are the Specifications of the TREMEC TKX TCET17722?

  • Part Number: TCET17722
  • GM-Specific Input Shaft: 26-Spline (Upgraded from legacy 10-spline configurations; requires a matching 26-spline clutch disc)
  • Output Shaft: 31-Spline
  • Torque Capacity: Rated for up to 600 lb-ft of torque
  • RPM Capability: Certified for clean, high-RPM shift points up to 7,500 RPM
  • Shifter Versatility: Three mounting locations built into the case for flexible console layout alignment (custom front shift kits available from SST!)
  • Warranty Protection: 12-Month Factory Warranty backed directly by TREMEC

GM Close-Ratio Gear Ratios:

  • 1st: 2.87
  • 2nd: 1.89
  • 3rd: 1.28
  • 4th: 1.00 (Direct drive)
  • 5th: 0.81

How Does the TREMEC TKX Improve Shift Quality and Fitment in GM Applications?

The TREMEC TKX solves the historic packaging and high-RPM shifting limitations of vintage gearboxes. By blending bulletproof internal strength with modern, smooth-shifting synchronizer technology, it delivers a driving experience that elevates any pro-touring or classic street machine.

  • Streamlined Fitment: The compact, end-loaded aluminum design easily fits inside tight vintage GM transmission tunnels (Chevelle, Camaro, Nova, Corvette) without requiring extensive, invasive floor pan modifications.
  • Maximum Case Rigidity: A heavy-duty, 3-piece aluminum housing minimizes internal flex to keep your gear engagement perfectly aligned under high-torque acceleration.
  • Crisp, Precise Shifts: Features an integrated, billet aluminum short-throw shifter that delivers tight, mechanical gear changes while isolating cabin road noise and vibration.
  • Advanced Synchronizers: Hybrid multi-cone synchronizers featuring sintered bronze and carbon rings allow you to effortlessly grab the next gear at high revs without grinding.
  • Quiet, Refined Cruising: An NVH-optimized (Noise, Vibration, and Harshness) helical gear layout ensures an incredibly quiet ride on long-distance highway hauls.
  • Leak-Free Integrity: Premium gaskets at all major housing faces guarantee a clean, oil-tight installation in your home garage or professional shop.
  • Restomod-Ready Electronics: Includes integrated connections for a reverse light switch and a cruise control safety switch to easily interface with modern wiring harnesses.

Why Choose the TKX TCET17722 Over a Vintage Muncie, Saginaw, or Factory T5?

Choosing the heavy-duty 26-spline input shaft of the TCET17722 provides significantly more shear strength at the clutch disc interface compared to traditional vintage GM 10-spline 4-speed configurations, offering ultimate reliability during hard launches. With modern internal geometry, OEM-level durability standards, and track-tested precision, the TKX is the absolute gold standard for GM restomods. It is the perfect gearbox upgrade for iconic platforms like the Chevrolet Camaro, Chevelle, Nova, Corvette, Pontiac Firebird, GTO, and custom C10 trucks. Traditional 4-speeds leave your engine spinning excessively fast at highway speeds, whereas the TKX close-ratio configuration maximizes power band efficiency and driving engagement.


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

Get the ideal balance of brute performance, structural packaging, and modern drivability in a single, bolt-in package from the elite team at Silver Sport Transmissions.

  • In Stock & Ready to Ship
  • Expert Technical Support and Complete Conversion Kits Available from the Silver Sport Transmissions Team
  • Fast Shipping Worldwide

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Item# Status Description
TCET17722 In Stock


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



$2,895.00

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