TREMEC TKX 5-Speed Transmission Package | Ford 429/460 Big Block

TREMEC TKX 5-Speed Transmission Package | Ford 429/460 Big Block

TREMEC TKX 5-Speed Transmission Package | Ford 429/460 Big Block

Description

TREMEC TKX 5-Speed Transmission Package | Ford 429/460 Big Block

Key Features

  • 600 lb-ft torque capacity handles the massive low-end torque of Ford 385-series big blocks
  • 8,000 RPM capability with safe shifts at 7,500 RPM via multi-cone synchronizers
  • 26-spline input shaft with 31-spline output shaft for maximum drivetrain strength
  • Compact end-loading case design provides superior tunnel clearance without floor modifications
  • Three-piece ribbed aluminum housing delivers structural stiffness and reduced NVH
  • Sintered bronze and carbon hybrid synchronizer rings for smooth, precise high-RPM shifts
  • Multiple gear ratio configurations available: wide ratio (3.27:1 first) or close ratio (2.87:1 first)
  • Three factory shifter locations with optional MDL offset shifters for custom positioning
  • Internal three-rail shift system with steel shift forks for race-proven durability
  • Built-in reverse light switch and cruise control safety switch simplify wiring
  • Mechanical and electronic speedometer outputs included
  • Completely customizable package - select transmission, clutch, hydraulics, flywheel, and accessories

Description

Ford's 385-series 429 and 460 big blocks are legendary torque producers, but finding a modern five-speed that can handle their output while fitting classic tunnels has always been a challenge. The TREMEC TKX solves both problems - it's rated at 600 lb-ft across all configurations and features the slimmest case profile of any five-speed on the market. MDL's Ford 429/460 TKX package pairs this transmission with application-specific bellhousing, clutch systems, hydraulics, and accessories engineered specifically for big-block Ford builds.

The TKX represents TREMEC's first transmission designed exclusively for the aftermarket, incorporating decades of customer feedback into a ground-up redesign. The end-loading architecture reduces case height and length compared to the TKO it replaces, while the ribbed three-piece aluminum housing - main case, intermediate plate, and extension housing - delivers exceptional structural rigidity. All gears and shafts are machined from ASTM 4615 special-grade steel, with oversized gear widths and caged needle bearings in all positions for extreme durability under high-load shifts. The hybrid synchronizer rings combine sintered bronze and carbon materials for smooth engagement even at elevated RPM, eliminating the notchy feel of older designs.

This fully customizable package walks you through selecting every component for your specific 429 or 460 build. Choose from multiple TKX variants with 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) gear sets depending on your rear axle ratio and driving style. The package includes Ford big-block bellhousing options, flywheel assemblies in steel or aluminum with appropriate balance for your crankshaft, hydraulic clutch systems with multiple torque ratings, master cylinder kits, hydraulic release bearing, and your choice of shift levers and knobs. Speedometer cables, gears, and electronic sensors are available for both mechanical and electronic gauge setups.

Whether you're building a thundering Torino, a brutal Bronco, or a custom big-block restomod, MDL's concierge service helps match every component to your project and budget. The TKX uses the same mounting points as the TKO for straightforward retrofits, and the 31-spline output accepts 1310, 1330, or 1350 driveshaft yokes. All TREMEC transmissions are built from 100% brand-new OEM-quality components. MDL provides lifetime technical support to ensure your installation goes smoothly.

What's Included

  • TREMEC TKX 5-speed transmission (your choice of wide or close ratio configurations)
  • Ford 429/460 big-block bellhousing
  • TKX Ford-specific hardware kit
  • Flywheel assembly (steel or aluminum options, 429 or 460 balance)
  • ARP flywheel bolts
  • Pressure plate bolts (standard or ARP)
  • Hydraulic clutch set (multiple torque ratings and disc options available)
  • Hydraulic master cylinder kit (multiple bore sizes and configurations)
  • Hydraulic line (24-inch)
  • Hydraulic release bearing
  • Transmission mount
  • Reverse light wiring harness
  • Shift knob (multiple styles available, including MDL-branded options)
  • Shift lever (multiple lengths and offsets available)
  • Hurst shift boot
  • Speedometer cable, driven gear, and gear clip options
  • Electronic speedometer sensor option
  • TREMEC-approved transmission fluid (3 quarts)
  • Driveshaft yoke (1310, 1330, or 1350 series, 31-spline)
  • Lifetime MDL technical support
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