Auto to TREMEC TKX 5-Speed Conversion Package | 1965-1967 Galaxie | Small Block Ford

Auto to TREMEC TKX 5-Speed Conversion Package | 1965-1967 Galaxie | Small Block Ford

Auto to TREMEC TKX 5-Speed Conversion Package | 1965-1967 Galaxie | Small Block Ford

Description

Key Features

  • 600 lb-ft torque capacity with 8,000 RPM engine capability and 7,500 RPM shift capability
  • Complete customizable package for automatic-to-manual conversion using existing four-speed tunnel hump and console
  • Multiple gear ratio configurations available including 2.87:1 and 3.27:1 first gear options with 0.68, 0.72, or 0.81 overdrive
  • 26-spline input shaft and 31-spline output shaft for maximum strength
  • Compact end-loading design provides superior tunnel clearance without floor modifications
  • Multi-cone synchronizers with sintered bronze and carbon hybrid rings for smooth high-RPM shifts
  • Three-piece ribbed aluminum housing delivers outstanding structural stiffness at only 99 lbs dry weight
  • Ford small block V8 compatibility with multiple bellhousing, clutch, and hydraulic options

Description

Converting your '65-'67 Galaxie from automatic to a modern 5-speed manual just got easier. This comprehensive TREMEC TKX conversion package delivers 600 lb-ft of torque capacity and the smooth, precise shifting that modern carbon-fiber synchronizers provide-a massive upgrade over any factory transmission these full-size Fords ever offered. The TKX's end-loading architecture creates a slimmer case profile that clears most transmission tunnels without cutting, and MDL has engineered this package specifically for automatic-to-TKX swaps that utilize the existing four-speed tunnel hump and console for natural shifter placement.

The TKX represents TREMEC's ground-up redesign of the 5-speed platform, featuring all gears and shafts machined from special grade ASTM 4615 steel for increased torque carrying capacity. Multi-cone synchronizers with sintered bronze and carbon hybrid rings enable safe shifts at 7,500 RPM-well beyond what older brass-ring transmissions could handle. The three-piece aluminum housing (main case, intermediate plate, and rear extension) provides structural stiffness while gaskets at all flanges eliminate fluid leaks. Tapered roller bearings on input, output, and countershafts reduce noise and improve durability.

MDL's guided package selection walks you through every component choice: transmission gear ratios to match your rear axle and driving style, Ford small block bellhousings in aluminum or steel, complete clutch systems from street to high-performance, hydraulic master and external slave cylinders, shifters and accessories, speedometer solutions (mechanical or electronic), and 31-spline slip yokes in multiple U-joint sizes. The single overdrive fifth gear reduces cruising RPM for better fuel efficiency and quieter highway driving while putting more smiles per mile into your build.

Every component is selected for direct compatibility with your small block Ford Galaxie, eliminating fitment guesswork. MDL provides lifetime technical support to ensure your conversion goes together right the first time. Made in the USA.

What's Included

This is a customizable package with guided component selection. Kit contents vary based on your specific configuration choices from the following categories:

  • TREMEC TKX 5-speed transmission (multiple gear ratio options: 2.87 or 3.27 first gear with 0.68, 0.72, or 0.81 overdrive)
  • Ford small block bellhousing (aluminum or steel construction options)
  • Bellhousing clutch fork
  • TKX-specific hardware kit (aluminum or steel bellhousing options)
  • Flywheel (steel, nodular iron, or aluminum with 0-balance, 28oz, or 50oz options)
  • ARP flywheel bolts
  • Complete clutch set (multiple torque capacities and configurations)
  • Pressure plate bolts (standard or ARP)
  • Hydraulic master cylinder kit (multiple reservoir styles available)
  • External slave cylinder kit
  • Shift knob (various materials, colors, and thread options)
  • Shift knob thread adapter
  • Shift lever (standard and offset configurations)
  • Shift boot (multiple materials and styles)
  • Speedometer cable
  • Speedometer driven gear (16-21 tooth options for calibration)
  • Speedo gear retaining clip
  • Electronic speedometer sensor (optional)
  • Transmission fluid (TREMEC HP-MTF or ATF)
  • Reverse light wiring harness
  • Transmission mount
  • 31-spline slip yoke (1310, 1330, or 1350 U-joint options)
  • Lifetime technical support from MDL drivetrain specialists
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