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1967-1970 Ford Mustang/Cougar TREMEC TKX 5-Speed Conversion Kit | 600 lb-ft Capacity | TKX-FORD-MUSTANG-6770

1967-1970 Ford Mustang/Cougar TREMEC TKX 5-Speed Conversion Kit | 600 lb-ft Capacity | TKX-FORD-MUSTANG-6770

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SKU:
TKX-FORD-MUSTANG-6770

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Product Description:

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Instructions

Hawks Motorsports offers our clients this 1967-1970 Ford Mustang/Cougar TREMEC TKX 5-Speed Conversion Kit | 600 lb-ft Capacity | TKX-FORD-MUSTANG-6770. This PerfectFit™ conversion kit upgrades classic Ford vehicles with a modern 5-speed overdrive transmission designed for improved cruising comfort, reduced RPM, and dependable street performance.

Vehicle Configuration Required

Transmission conversion kits are vehicle specific. Complete the Hawks Motorsports Transmission Conversion Request Form before ordering so our team can verify compatibility and confirm the correct components for your application.

The TREMEC TKX features a compact rounded case design while providing up to 600 lb-ft of torque capacity and the ability to handle high-RPM shifting. Designed for everyday street use, the TKX provides a balance of performance, durability, and improved drivability for classic Mustang and Cougar builds.

Available gear ratio configurations include wide ratio and close ratio options. The wide ratio version features 3.27, 1.98, 1.34, 1.00, and 0.72 gears. Close ratio options include 2.87, 1.89, 1.28, 1.00, and either 0.68 or 0.81 fifth gear depending on configuration.

The complete conversion kit includes the TREMEC TKX 5-speed overdrive transmission, heavy-duty pilot bearing, installation hardware, isolator mount, reverse light connector, speedometer connection compatibility, crossmember, driveshaft and slip yoke, clutch alignment tool, and detailed installation instructions.

For automatic-to-manual conversions, additional components may be required including flywheel, clutch assembly, bellhousing, dust cover, hydraulic clutch components, clutch pedal components, shifter components, and related installation hardware.

Driveshafts are not included with every order and may be purchased separately depending on application requirements. Verify engine combination, clutch system, and drivetrain configuration before ordering.

KEY FEATURES:

  • TREMEC TKX 5-speed manual conversion kit for 1967-1970 Ford Mustang and Mercury Cougar applications
  • 600 lb-ft torque capacity
  • Compact rounded case design
  • Capable of high-RPM shifting applications
  • Designed for everyday street use and performance builds
  • Wide ratio gear set: 3.27, 1.98, 1.34, 1.00, 0.72
  • Close ratio gear sets: 2.87, 1.89, 1.28, 1.00, 0.68 or 0.81
  • Overdrive fifth gear for reduced highway RPM
  • Improved cruising comfort and reduced drivetrain stress
  • Reduced noise, vibration, and harshness characteristics
  • Compatible with mechanical or hydraulic clutch actuation when properly configured
  • Includes heavy-duty needle roller pilot bearing with lubrication seal
  • Includes complete labeled installation hardware
  • Includes rubber isolator mount for vibration control
  • Includes waterproof reverse light connector
  • Includes mechanical and electronic compatible speedometer connection
  • Includes crossmember
  • Includes driveshaft and slip yoke where applicable
  • Includes clutch alignment tool and installation instructions
  • Optional flywheel, clutch, bellhousing, hydraulic clutch, and shifter components available

FITMENT APPLICATIONS

MakeModelYears
Ford Mustang 1967-1970
Mercury Cougar 1967-1970

Verify fitment before ordering. Engine combination, clutch system, driveshaft requirements, and drivetrain configuration must be confirmed before purchase.


INSTALLATION NOTES:

  • Complete the Hawks Motorsports Transmission Conversion Request Form to confirm compatibility.
  • Automatic-to-manual conversions require additional components including clutch, flywheel, bellhousing, pedal assembly, and hydraulic clutch components.
  • Driveshaft requirements vary depending on vehicle configuration.
  • Verify transmission ratio selection before ordering.
  • Professional installation is recommended due to drivetrain modifications and clutch system installation requirements.
  • Verify all vehicle specifications before installation.
  • Installed or modified components may not be eligible for return. Confirm application details before installation.

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