TREMEC TKX 5-Speed Conversion Package | 1964-1966 Chevelle | SB/BB Auto-to-Manual

TREMEC TKX 5-Speed Conversion Package | 1964-1966 Chevelle | SB/BB Auto-to-Manual

TREMEC TKX 5-Speed Conversion Package | 1964-1966 Chevelle | SB/BB Auto-to-Manual

Description

TREMEC TKX 5-Speed Conversion Package | 1964-1966 Chevelle | SB/BB Auto-to-Manual

Key Features

  • Complete customizable TKX conversion system for '64-'66 Chevelle small block and big block V8 automatic-to-manual swaps
  • TREMEC TKX 5-speed transmission with 600 lb-ft torque capacity and 7,500 RPM shift capability
  • Multiple gear ratio configurations: wide-ratio (3.27 first, 0.72 fifth) and close-ratio (2.87 first, 0.68 or 0.81 fifth) options
  • No tunnel modifications required - TKX's compact end-loading design fits A-body tunnels
  • 26-spline input shaft with 31-spline output shaft for strength and driveline compatibility
  • Choice of aluminum or steel bellhousings with GM Muncie 3/4-speed bolt pattern
  • Complete hydraulic clutch system options with multiple master cylinder configurations
  • Custom crossmember solutions engineered for proper TKX mounting and driveline angles
  • Guided package selection walks you through every component for your specific build

Description

Transform your automatic-equipped '64-'66 Chevelle into a true driving machine with this comprehensive TKX 5-speed conversion package. This isn't just a transmission swap - it's a complete drivetrain transformation engineered specifically for first-generation A-body Chevelles equipped with small or big block Chevy V8s. The TREMEC TKX eliminates the notchy, difficult shifting associated with older 4-speeds while delivering modern transmission performance with single overdrive for reduced highway RPM and improved fuel economy.

The TKX's revolutionary end-loading case design solves the biggest challenge in A-body conversions: tunnel clearance. Where older transmissions required extensive floor modifications, the TKX's compact envelope fits GM A-bodies - including Chevelle, GTO, Cutlass, Nova, and Camaro - without cutting. TREMEC designed the TKX with enhanced gear sizes and a revised double-lined carbon-fiber synchronizer package that can be safely shifted at 7,500 RPM, with much of the stiff, notched shifter feel eliminated. The three-piece ribbed aluminum housing provides outstanding structural stiffness while maintaining gaskets at all flanges to eliminate fluid leaks.

The TKX bolts directly to GM 3-speed and 4-speed Muncie/Richmond bellhousings, making it a straightforward upgrade path from your automatic. The 26-spline input shaft and 31-spline output shaft handle serious power, and the transmission's side-mounted shifter retains factory shifter position for that original appearance. All gears and shafts are manufactured from special grade ASTM 4615 steel for increased torque carrying capacity, while tapered roller bearings on the input, output, and countershafts reduce noise and improve durability.

Our guided package configurator walks you through every component selection - from transmission gear ratios to bellhousing materials, clutch systems, hydraulic setups, flywheels, and crossmember solutions. Every component is selected and engineered to work together as a complete system. MDL's technical team provides concierge-level support at any point during configuration to ensure you select the right components for your project goals and budget. The TKX uses Dexron III/Mercon ATF or TREMEC HP-MTF with a fluid capacity of 2.7 quarts.

What's Included

  • TREMEC TKX 5-speed transmission (multiple gear ratio options available)
  • GM-pattern aluminum or steel bellhousing with block plate options
  • Bellhousing hardware kit (aluminum or steel bolt options)
  • SFI-approved flywheel options for small block and big block applications (multiple balance options)
  • ARP flywheel bolt kit
  • Complete clutch assemblies with pressure plate and disc options
  • Pressure plate bolt kit (standard or ARP options)
  • Hydraulic clutch pedal assembly
  • Pedal pad kit options
  • Hydraulic master cylinder kit with multiple finish options
  • Hydraulic release bearing assembly
  • 24-inch braided stainless hydraulic clutch line
  • Shift knobs with thread adapters (multiple styles and MDL-branded options)
  • Hurst or custom shift lever assemblies
  • Shift boot and trim ring
  • TKX-specific crossmember
  • Polyurethane transmission mount
  • Speedometer cable adapter and driven gear options
  • Electronic speedometer sensor option
  • Speedometer gear retaining clip
  • Reverse light wiring harness
  • TREMEC HP-MTF or Dexron III ATF transmission fluid (3 quarts)
  • 31-spline slip yoke (multiple U-joint series options: 1310, 1330, 1350)
  • Lifetime MDL technical support
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