TREMEC TCET18083 TKX 5-Speed Manual Transmission Wide Ratio Chevy

The TREMEC TCET18083 TKX 5-Speed Manual Transmission Wide Ratio Chevy is a premium 5-speed rear-wheel-drive manual transmission engineered for GM-powered classic cars, muscle cars, hot rods, and restomod projects. Featuring a wide-ratio gear set with a 3.27:1 first gear, this TKX transmission delivers outstanding off-the-line acceleration while its 0.72 overdrive provides reduced engine RPM for comfortable highway cruising.

Rated to handle 600 lb-ft of torque, the TKX is built with a rugged three-piece aluminum case, wider gears, and advanced multi-cone synchronizers for exceptionally smooth, high-RPM shifting. Its compact, end-loaded design fits many classic GM applications with minimal or no transmission tunnel modifications, making it one of the most versatile manual transmissions available.

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Features

• Genuine TREMEC TCET18083 TKX 5-Speed Manual Transmission
• Wide-ratio gearing for excellent street performance
• Designed for GM rear-wheel-drive applications
• Rated for 600 lb-ft of torque
• Smooth shifting up to 7,500 RPM
• Maximum engine speed of 8,000 RPM
• Compact end-loaded case for improved tunnel clearance
• Three selectable shifter mounting locations
• Multi-cone synchronizers with hybrid bronze/carbon friction rings
• Oversized gear widths for increased durability
• Ribbed three-piece aluminum housing
• Mechanical and electronic speedometer provisions
• Built-in reverse light switch
• Integrated GM transmission mount pattern
• Low noise, vibration, and harshness (NVH)

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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: TCET18083
• Model: TKX
• Transmission Type: 5-Speed Manual
• Application: GM Rear-Wheel Drive
• Torque Capacity: 600 lb-ft
• Maximum Engine RPM: 8,000 RPM
• Recommended Shift RPM: 7,500 RPM
• Case Material: Aluminum
• Dry Weight: Approximately 99 lbs
• Input Shaft Diameter: 1.125 inches
• Input Shaft Spline Count: 26
• Output Shaft Diameter: 1.375 inches
• Output Shaft Spline Count: 31
• Speedometer Output: Mechanical and Electronic
• Release Type: Mechanical
• Fluid Capacity: 2.7 quarts
• Recommended Fluid: TREMEC High Performance Manual Transmission Fluid
• Shifter Positions: 3
• Bellhousing Included: No
• Shifter Included: Stub Shifter
• Slip Yoke Included: No

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Package Includes

• TREMEC TCET18083 TKX 5-Speed Manual Transmission
• Rear-Mounted Stub Shifter
• Reverse Light Switch
• Cruise Control Safety Switch
• Installation Hardware
• Manufacturer Documentation

Bellhousing, clutch kit, flywheel, crossmember, transmission mount, slip yoke, and driveshaft are sold separately unless otherwise specified.

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Recommended Applications

Ideal for:

• Chevrolet Camaro
• Chevrolet Chevelle
• Chevrolet Nova
• Chevrolet C10 Pickup
• Chevrolet Bel Air
• Chevrolet El Camino
• Chevrolet Corvette (conversion applications)
• Pontiac GTO
• Pontiac Firebird
• Buick Skylark
• Oldsmobile Cutlass
• GM LS Engine Swaps
• Pro-Touring Builds
• Street Performance Vehicles
• Classic Muscle Cars

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Installation Requirements

Installation may require:

• GM-compatible bellhousing
• 26-spline clutch disc
• 31-spline slip yoke
• Transmission crossmember
• Transmission mount
• Driveshaft modification depending on vehicle
• Clutch linkage or hydraulic conversion
• TREMEC High Performance Manual Transmission Fluid

Professional installation is recommended to ensure proper alignment, shifter placement, and optimum drivetrain performance.

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Warranty

The TREMEC TCET18083 TKX 5-Speed Manual Transmission Wide Ratio Chevy is backed by a 1-Year Limited Warranty, covering defects in materials and workmanship under normal use and proper installation.

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Why Choose the TREMEC TCET18083 TKX?

The TREMEC TCET18083 TKX Wide Ratio is an ideal upgrade for enthusiasts seeking a modern manual transmission that combines exceptional strength with everyday drivability. Its 600 lb-ft torque capacity, 3.27 first gear, 0.72 overdrive, compact installation-friendly design, and high-RPM shift capability make it perfect for classic GM muscle cars, LS swaps, street machines, and pro-touring builds. Designed with premium synchronizers, oversized gears, and a lightweight aluminum housing, the TKX delivers smooth shifting, outstanding reliability, and excellent highway performance.