Auto to TKX Conversion Package | 1987-1993 Mustang | Ford Modular V8

Auto to TKX Conversion Package | 1987-1993 Mustang | Ford Modular V8

Auto to TKX Conversion Package | 1987-1993 Mustang | Ford Modular V8

Description

Key Features

  • Complete auto-to-manual conversion package for 1987-1993 Mustangs with Ford Modular V8 swaps
  • TREMEC TKX 5-speed transmission with 600 lb-ft torque capacity and 7,500 RPM shift capability
  • Multiple gear ratio options: wide-ratio (3.27 first) or close-ratio (2.87 first) with overdrive choices from 0.68 to 0.81
  • 26-spline input shaft and 31-spline output shaft for maximum strength
  • Compact end-loaded case design fits Fox-body transmission tunnels with minimal modification
  • Three shifter locations for optimal placement in your application
  • Fully customizable component selection matched to your engine variant and power goals
  • Guided package builder walks you through every component decision

Description

Converting your automatic-equipped 1987-1993 Mustang to a proper manual gearbox becomes a complete bolt-in solution with this TKX conversion package. Designed specifically for Ford Modular V8 swaps, this package delivers everything you need to drop the slushbox and gain full control of your drivetrain - from transmission to shifter, clutch components to crossmember, and all the supporting hardware in between.

The heart of this package is the TREMEC TKX, a purpose-built aftermarket 5-speed that handles 600 lb-ft of torque and shifts cleanly at 7,500 RPM. Unlike retrofitted OEM gearboxes, the TKX was engineered from the ground up for restomod applications with a ribbed three-piece aluminum housing that delivers outstanding structural stiffness while maintaining the slimmest profile of any 5-speed on the market. Multi-cone synchronizers with hybrid sintered bronze and carbon rings deliver smooth, precise shifts even at high RPM - no notchy engagement, no missed gears.

What sets this package apart is complete customization for your specific Modular engine combination. The guided selection process walks you through transmission gear ratios (3.27 or 2.87 first gear, with 0.68, 0.72, or 0.81 overdrive options), bellhousing and block plate fitment, flywheel selection, clutch capacity requirements, cable or hydraulic actuation, shifter positioning, speedometer solutions, and driveline components. Every piece is matched to work together - no hunting for compatible parts or discovering fitment issues mid-build.

Whether you're running a 4.6L two-valve, a Coyote making serious power, or anything in between, this package delivers the engagement and control that your Modular-swapped Fox-body deserves. Professional consultation ensures proper component matching for your specific application and performance requirements.

Kit Includes

  • TREMEC TKX 5-speed transmission (multiple gear ratio configurations available)
  • Ford Modular V8 bellhousing with block plate
  • Installation hardware kit (aluminum or steel options available)
  • Flywheel matched to your engine and clutch selection
  • Flywheel bolt kit
  • Complete clutch assembly with pressure plate and disc
  • Pressure plate bolt kit
  • Clutch cable kit with cable clip
  • Clutch fork
  • Pedal pads (pair)
  • Crossmember and transmission mount
  • Shift lever with boot and knob options
  • Lower shift boots and mounting hardware
  • Transmission tunnel hump (if required)
  • Shift console bezel
  • Speedometer gear and retaining clip
  • Electronic speedometer sensor
  • Reverse light and speedometer wiring harnesses
  • Transmission fluid (3 quarts)
  • 31-spline slip yoke (multiple U-joint sizes available: 1310, 1330, 1350)
  • Professional consultation and lifetime technical support
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