Tremec TKX LS Swap Kit for 5 Speed Conversion LS1, LS3, 6.0

The TREMEC TKX LS Swap Kit for 5-Speed Conversion is a complete performance drivetrain package engineered for Gen III and Gen IV GM LS engines, including LS1, LS2, LS3, 4.8L, 5.3L, 5.7L, 6.0L, and 6.2L applications. Designed to simplify manual transmission conversions, this kit includes the major components required to install a TREMEC TKX 5-speed transmission behind your LS engine, making it an ideal solution for muscle cars, hot rods, pro-touring builds, and classic truck restorations.

At the heart of the kit is the TREMEC TKX 5-Speed Manual Transmission, rated for 600 lb-ft of torque with smooth shifting capabilities up to 7,500 RPM. Its compact aluminum case provides improved transmission tunnel clearance, while the overdrive fifth gear reduces engine RPM for quieter highway driving, improved fuel economy, and reduced engine wear. Built entirely from brand-new OEM-quality components, the TKX offers outstanding durability, precision shifting, and long-term reliability.

Whether you’re converting an automatic-equipped vehicle or replacing an older manual transmission, the TREMEC TKX LS Swap Kit provides everything needed for a professional-quality installation and modern driving performance.

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Features

• Complete TREMEC TKX LS 5-Speed Conversion Kit
• Fits Gen III and Gen IV LS engines
• Compatible with LS1, LS2, LS3, 4.8L, 5.3L, 5.7L, 6.0L, and 6.2L engines
• Designed for 6-bolt LS crankshaft applications
• TREMEC TKX 5-Speed Manual Transmission
• Rated for 600 lb-ft of torque
• Smooth shifting up to 7,500 RPM
• Supports engine speeds up to 8,000 RPM
• Lightweight aluminum transmission case
• Overdrive fifth gear for reduced highway RPM
• Fully synchronized forward gears
• Hydraulic clutch operation
• Ideal for muscle cars, hot rods, restomods, and pro-touring builds

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Gear Ratios

• 1st Gear: 2.87:1
• 2nd Gear: 1.89:1
• 3rd Gear: 1.28:1
• 4th Gear: 1.00:1
• 5th Gear: 0.68:1
• Reverse: 2.56:1

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Specifications

• Brand: TREMEC
• Transmission Model: TKX
• Transmission Type: 5-Speed Manual
• Engine Compatibility: LS1, LS2, LS3, 4.8L, 5.3L, 5.7L, 6.0L, 6.2L
• Torque Capacity: 600 lb-ft
• Maximum Engine Speed: 8,000 RPM
• Shift Capability: 7,500 RPM
• Case Material: Aluminum
• Input Shaft Diameter: 1.125 inches
• Input Shaft Spline Count: 26
• Output Shaft Diameter: 1.375 inches
• Output Shaft Spline Count: 31
• Bellhousing Included: Yes
• Shifter Included: Yes
• Release Bearing: Hydraulic
• Speedometer Output: Electronic and Mechanical
• Approximate Dry Weight: 99 lbs

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Kit Includes

• TREMEC TKX 5-Speed Manual Transmission
• Steel LS Bellhousing
• Performance Clutch Kit
• Hydraulic Throwout Bearing
• Billet Steel Flywheel
• Pilot Bearing
• Flywheel Hardware
• Bellhousing Hardware
• Reverse Light Wiring Harness
• Electronic Speedometer Harness
• Clutch Installation Components

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Recommended Applications

Ideal for:

• Chevrolet Camaro LS Swaps
• Chevrolet Chevelle LS Conversions
• Chevrolet Nova LS Builds
• Chevrolet El Camino
• Chevrolet C10 Pickup
• Chevrolet Bel Air
• Chevrolet Impala
• Pontiac GTO
• Pontiac Firebird
• Street Rods
• Pro-Touring Cars
• Custom LS Engine Projects

Compatible with most Gen III and Gen IV LS engines equipped with a 6-bolt crankshaft.

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Installation Requirements

Installation may require:

• Transmission crossmember
• Driveshaft modifications
• Transmission mount
• Clutch master cylinder
• Hydraulic clutch lines
• Pedal assembly (automatic-to-manual conversions)
• ECU tuning (if applicable)
• Transmission fluid

Professional installation is recommended to ensure proper alignment, clutch operation, and drivetrain performance.

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Warranty

The TREMEC TKX LS Swap Kit for 5-Speed Conversion is backed by a 1-Year Limited Warranty, covering defects in materials and workmanship under normal use and proper installation.