Auto-to-TKX Conversion Package | 1987-1993 Mustang | Ford Small Block

Auto-to-TKX Conversion Package | 1987-1993 Mustang | Ford Small Block

Auto-to-TKX Conversion Package | 1987-1993 Mustang | Ford Small Block

Description

Key Features

  • TREMEC TKX 5-speed transmission rated at 600 lb-ft torque capacity with 7,500 RPM shift capability
  • 26-spline input shaft with 31-spline output for maximum driveline strength
  • Multiple gear ratio options: wide-ratio 3.27:1 first gear (0.72:1 overdrive) or close-ratio 2.87:1 first gear (0.68:1 or 0.81:1 overdrive)
  • Complete auto-to-manual conversion with transmission, bellhousing, clutch system, crossmember, pedals, and all installation hardware
  • Slimmest 5-speed case on the market with end-loaded design for superior tunnel clearance
  • Multi-cone synchronizers with hybrid sintered bronze/carbon rings for smooth, precise shifts
  • Customizable package builder lets you select specific components for your power level and budget
  • Compatible with Ford small block V8 engines producing over 450 horsepower

Description

Transform your automatic 1987-1993 Fox Body Mustang into a true driver's car with this comprehensive TREMEC TKX conversion package. The sluggish AOD automatic is no match for the direct, mechanical connection of a proper 5-speed manual - and the TKX delivers the modern shift quality and bulletproof durability your high-performance small block demands. With 600 lb-ft of torque capacity and the ability to handle engine speeds up to 8,000 RPM, this transmission is built for serious power without sacrificing street manners.

The TKX represents TREMEC's ground-up redesign specifically for the aftermarket. The three-piece ribbed aluminum housing delivers exceptional structural stiffness while the end-loaded architecture creates the slimmest 5-speed case on the market - critical for tight Fox Body tunnels. Enhanced gear widths and caged needle bearings in all gear positions ensure long-term durability, while the multi-cone synchronizers with hybrid sintered bronze/carbon rings eliminate the notchy, high-RPM shift feel of older transmissions. Three factory shifter locations provide flexibility for console or floor-mount configurations.

This package addresses every component required for a complete automatic-to-manual conversion. Beyond the transmission itself, you'll select from aluminum or steel bellhousings, cable or hydraulic clutch actuation, single or twin-disc clutch sets, steel or aluminum flywheels, and the correct crossmember, transmission mount, and driveline components. The guided package builder walks you through each selection based on your specific power level, driving style, and budget - ensuring every component works together as a system.

MDL's decades of Fox Body conversion experience means every part in this package has been vetted for proper fitment and function. The transmission tunnel hump, pedal assemblies, shift boots, console modifications, wiring harnesses, and speedometer components are all included to deliver a factory-quality installation. For lubrication, TREMEC recommends HP-MTF, Dexron-III, GM Synchromesh, Mobil 1 Synthetic ATF, or Pennzoil Synchromesh. Lifetime technical support is included with your purchase.

Kit Includes (Customizable Selection)

  • TREMEC TKX 5-speed manual transmission (choice of wide-ratio or close-ratio gear sets)
  • Ford small block bellhousing (aluminum or steel options)
  • Bellhousing block plate
  • Transmission-to-bellhousing installation hardware kit
  • Flywheel (steel billet, lightweight steel, or aluminum - 28oz or 50oz balance, or zero-balance)
  • ARP flywheel bolts
  • Clutch set (single-disc or twin-disc options for various power levels)
  • Pilot bearing (standard or heavy-duty for twin-disc applications)
  • Pressure plate bolts (standard or ARP)
  • Clutch cable kit with cable clip
  • Bellhousing clutch fork with powder-coated fork cover and gasket
  • Speedometer driven gear (16-21 tooth options) with retaining clip
  • Electronic speedometer sensor options
  • Shift knob and shift lever
  • Shift boots (4) with lower shift boot and mounting hardware
  • Shift console modification plate
  • Transmission tunnel hump
  • Clutch and brake pedal pads with trim rings (2)
  • TKX-specific transmission crossmember
  • Transmission mount
  • Main wiring harness and reverse light harness
  • Transmission fluid (3 quarts HP-MTF or ATF)
  • 31-spline slip yoke (1310, 1330, or 1350 U-joint series)
  • Complete installation instructions and lifetime technical support
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