TREMEC TKX 5-Speed Conversion Package | Sunbeam Tiger | Ford 289/302 6-Bolt

TREMEC TKX 5-Speed Conversion Package | Sunbeam Tiger | Ford 289/302 6-Bolt

TREMEC TKX 5-Speed Conversion Package | Sunbeam Tiger | Ford 289/302 6-Bolt

Description

TREMEC TKX 5-Speed Conversion Package | Sunbeam Tiger | Ford 289/302 6-Bolt

Key Features

  • 600 lb-ft torque capacity with 8,000 RPM engine speed capability and 7,500 RPM shift points
  • Compact end-loaded case design fits the Tiger's tight transmission tunnel without floor modifications
  • Multiple gear ratio configurations available - wide ratio (3.27, 1.98, 1.34, 1.00, 0.72) or close ratio (2.87, 1.89, 1.28, 1.00, 0.68/0.81)
  • 26-spline input shaft with 31-spline output shaft for added drivetrain strength
  • Ribbed three-piece aluminum housing delivers outstanding structural stiffness
  • Multi-cone synchronizers with sintered bronze and carbon hybrid rings for superior high-RPM shift quality
  • Shifter maintains OEM location for factory-correct appearance
  • Fully customizable package - select transmission, clutch, driveshaft, and supporting components
  • Designed specifically for Ford 289/302 engines with 6-bolt bellhousing pattern

Description

The factory four-speed in your Sunbeam Tiger served its purpose, but it's time for a serious upgrade. This TREMEC TKX conversion package delivers modern five-speed performance to your Tiger's Ford 289 or 302 V8 without the tunnel surgery that other swaps demand. The TKX's end-loaded architecture creates a slimmer, shorter leading case section that slips into the Tiger's notoriously tight confines while delivering 600 lb-ft of torque capacity - more than enough for whatever you've built.

TREMEC engineered the TKX from the ground up as a purpose-built aftermarket transmission, not a repurposed OEM unit. The three-piece ribbed aluminum case provides exceptional structural stiffness, while all gears and shafts are machined from special-grade ASTM 4615 steel for maximum torque-carrying capacity. Multi-cone synchronizers with hybrid sintered bronze and carbon rings deliver smooth, precise shifts even at the 7,500 RPM shift points the TKX is rated for. Gaskets at all mating surfaces eliminate the fluid leaks that plague older designs.

For Tigers running 6-bolt 289 or 302 engines, this package addresses the bellhousing compatibility that trips up many builders. The guided selection process walks you through choosing the right transmission ratio - the wide-ratio 3.27:1 first gear suits street driving while the close-ratio 2.87:1 first gear works better for road racing or forced-induction builds. Single overdrive (0.68, 0.72, or 0.81 depending on configuration) drops highway RPM for relaxed cruising without sacrificing the low-end grunt these lightweight British sports cars thrive on.

Every component in this package is selected for Tiger-specific fitment. The custom crossmember positions the transmission correctly for proper driveline angles, while speedometer gear options ensure accurate instrumentation. Choose between steel and carbon fiber driveshaft options based on your performance goals and budget. MDL's concierge service is available if you need help selecting the right components for your specific build.

Package Includes

  • TREMEC TKX 5-speed transmission - your choice of gear ratio configuration
  • Clutch kit - single or double disc options available
  • Pressure plate bolts - standard or ARP hardware
  • Tiger-specific hardware kit
  • Billet aluminum shift lever - 6.75-inch length
  • Shift knob
  • Shift boot
  • Speedometer cable
  • Speedometer driven gear - selectable tooth count (16-21 tooth options)
  • Speedometer gear retaining clip
  • Electronic speedometer sensor option
  • Custom Tiger crossmember
  • Transmission mount
  • Transmission fluid - 3 quarts (HP-MTF or Dexron-compatible ATF)
  • Driveshaft - steel or carbon fiber options
  • MDL lifetime technical support
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