Auto to TKX Conversion Package | 1967-1968 Mustang and Cougar | Small Block Ford

Auto to TKX Conversion Package | 1967-1968 Mustang and Cougar | Small Block Ford

Auto to TKX Conversion Package | 1967-1968 Mustang and Cougar | Small Block Ford

Description

Key Features

  • Complete customizable conversion - Every component selected specifically for your '67-'68 Mustang or Cougar small block Ford build
  • TREMEC TKX transmission - 600 lb-ft torque capacity, 8,000 RPM capable with shifts at 7,500 RPM, multiple gear ratio configurations available
  • Compact end-loaded design - Slimmest 5-speed on the market provides superior tunnel clearance with minimal or no floor pan modifications
  • 26-spline input, 31-spline output - Robust shaft sizing for strength and durability under high-torque loads
  • OEM shifter positioning - Maintains factory shift lever location for authentic appearance and feel
  • Full hydraulic clutch system - Master cylinder, external slave cylinder, and clutch pedal assemblies configured for clean, reliable actuation
  • Guided package builder - Walk through every component selection with expert concierge support available

Description

Converting your '67-'68 Mustang or Cougar from automatic to a modern 5-speed manual transforms the driving experience - and the TREMEC TKX makes it easier than ever. Designed from the ground up specifically for the aftermarket, the TKX delivers 600 lb-ft of torque capacity with smooth, precise shifts at up to 7,500 RPM. The compact, end-loaded case design provides the slimmest profile of any 5-speed on the market, giving you superior tunnel clearance and often eliminating the floor pan cutting required by older TKO transmissions.

The TKX features multi-cone synchronizers with hybrid sintered bronze and carbon rings for outstanding shift quality at high RPM, while the ribbed 3-piece aluminum housing minimizes noise, vibration, and harshness. Internal construction includes special-grade ASTM 4615 steel gears and shafts, caged needle bearings in all gear positions, and gaskets at all flanges for leak-free operation. A 26-spline input shaft paired with a 31-spline output shaft handles serious torque, and the Ford C6-style slip yoke output simplifies driveline integration.

MDL's guided package builder walks you through every component choice - from transmission gear ratios (wide-ratio 3.27 first gear or close-ratio 2.87 first gear configurations) to bellhousing selection, hydraulic system setup, and flywheel/clutch combinations. Choose from QuickTime bellhousings, multiple flywheel materials and balance options, performance clutch kits matched to your power level, and complete hydraulic actuation systems. The shifter maintains OEM positioning for a factory appearance, and everything is engineered to work together as a complete system.

Whether you're building a weekend cruiser or a high-performance street machine, this package delivers modern transmission technology with reliable, confidence-inspiring shifts. MDL's concierge service ensures you get the right components for your specific engine combination, performance goals, and budget. Compatible with small block Ford V8 engines in 1967-1968 Mustang and Cougar applications.

Package Options Include

  • TREMEC TKX 5-Speed Transmission - Choice of wide-ratio (3.27, 1.98, 1.34, 1.00, 0.72) or close-ratio (2.87, 1.89, 1.28, 1.00, 0.68 or 0.81) configurations
  • Hurst Custom Shifter - Precision short-throw shifter positioned for OEM shift lever location
  • Bellhousing - QuickTime or equivalent Ford small block to TKX pattern bellhousings
  • Bellhousing Block Plate - Proper dust cover and alignment
  • TKX Ford Installation Hardware Kit - Complete fastener package for transmission installation
  • Clutch Fork - Bellhousing-specific fork for proper throwout bearing operation
  • Hydraulic Master Cylinder Kit - Firewall-mounted master cylinder with multiple bore size options
  • External Slave Cylinder Kit - Hydraulic release bearing assemblies for TKX applications
  • Flywheel Options - Chromoly steel, lightweight steel, or billet aluminum in 0-balance, 28oz, or 50oz configurations
  • ARP Flywheel Bolts - Premium fasteners for secure crankshaft attachment
  • Performance Clutch Kit - Disc and pressure plate matched to your power level and driving style
  • Pressure Plate Bolts - Grade 8 or ARP fasteners for flywheel-to-pressure plate attachment
  • Clutch Pedal Assembly - Reproduction hydraulic clutch pedal for '67-'68 Mustang/Cougar
  • Clutch Pedal Stop - Proper pedal travel limiting
  • Pedal Pad Kit - Replacement rubber pedal pads
  • Pedal Bushing/Bearing - Smooth pivot operation
  • Shift Knob Options - Multiple styles including MDL branded options
  • Shift Knob Thread Adapters - 3/8-16, 3/8-24, or 1/2-20 thread options
  • Shift Lever Options - Standard and custom length levers for proper reach
  • Shift Boot and Bezel - Multiple styles for finished interior appearance
  • Speedometer Components - Cables, driven gears (16-21 tooth options), gear clips, and electronic sensors
  • Reverse Light Harness - Plug-and-play wiring for backup light integration
  • Crossmember - TKX-specific transmission crossmember for '67-'73 Mustang
  • Transmission Mount - Rubber isolator mount for TKX applications
  • Transmission Fluid - TREMEC HP-MTF or compatible ATF (2.7 quart capacity)
  • Slip Yoke Options - 31-spline output yokes in 1310, 1330, or 1350 U-joint sizes
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