T5 5-Speed Auto-to-Manual Conversion Package | 1965-1966 Mustang | Modular 4.6/5.0L

T5 5-Speed Auto-to-Manual Conversion Package | 1965-1966 Mustang | Modular 4.6/5.0L

T5 5-Speed Auto-to-Manual Conversion Package | 1965-1966 Mustang | Modular 4.6/5.0L

Description

T5 5-Speed Auto-to-Manual Conversion Package | 1965-1966 Mustang | Modular 4.6/5.0L

Key Features

  • TREMEC T5 Super Duty 5-speed with 330 ft-lb torque capacity - suitable for streetcars up to 450 hp on DOT-approved tires
  • Gear ratios: 2.95 / 1.94 / 1.34 / 1.00 / 0.63 - deep 0.63:1 overdrive for highway cruising
  • Just 75 lbs. dry weight - the most compact transmission in the TREMEC lineup
  • Offset shifter positions shift pattern in OEM console opening - no floorpan modifications required
  • Complete kit engineered specifically for Ford Modular 4.6L/5.0L engine swaps in first-gen Mustangs
  • 10-spline input shaft / 31-spline output shaft
  • Configurable package builder lets you select clutch, flywheel, hydraulics, and shifter components to match your build
  • Requires 2.75 quarts ATF Dexron III

Description

Swapping a Ford Modular engine into a first-generation Mustang and ditching the automatic? This complete T5 conversion package eliminates the guesswork of sourcing compatible components. The TREMEC T5 Super Duty is the smallest and lightest transmission in the TREMEC lineup, making it ideal for tight classic Mustang engine bays - especially when fitting modern 4.6L or 5.0L Modular powerplants into vintage chassis. At just 75 lbs. dry, it installs without modifications and delivers smooth, reliable shifting for moderate-horsepower street builds.

The T5 Super Duty handles 330 ft-lb of torque and works comfortably behind streetcars producing up to 450 hp. The 2.95:1 first gear provides strong launch performance, while the deep 0.63:1 fifth-gear overdrive drops cruising RPMs for better fuel economy, reduced engine temperatures, and a quieter cabin on the highway. The offset shifter included in this package relocates the shift pattern to match the original automatic console opening, preserving your interior without cutting or fabrication.

Every component in this package has been selected for direct compatibility with Ford Modular engines and '65-'66 Mustang chassis. The bellhousing provides proper engine-to-transmission alignment. The hydraulic release bearing eliminates mechanical linkage complexity, and the complete clutch system is sized to handle Modular engine torque output. MDL's guided package builder walks you through each component selection - clutch capacity, flywheel weight, shifter style, hydraulic configuration - so you can tailor the kit to your specific build requirements and budget.

Not sure which components are right for your project? MDL offers concierge tech support to help you spec the correct parts. The T5 has a long history of proven reliability in Mustangs, and this package puts everything you need in one place for a complete auto-to-manual conversion behind your Modular engine swap.

Kit Includes (Package Builder Selections)

  • TREMEC T5 Super Duty 5-speed transmission (PN MD-552-0251)
  • Ford Modular bellhousing with hardware kit
  • Custom offset shifter for OEM console positioning
  • Clutch kit options: organic, Kevlar, or ceramic disc configurations for hydraulic release
  • Billet steel flywheel options with ARP flywheel bolts
  • ARP pressure plate bolts
  • Hydraulic master cylinder kit with reservoir options (polished, black, or chrome finish)
  • Stainless braided hydraulic line (-4AN, 24-inch)
  • Hydraulic release bearing assembly
  • Clutch pedal assembly with adjustable stop
  • Pedal pad kit
  • Shift lever options: Hurst or MDL custom billet levers
  • Shift boot and knob selections
  • Speedometer cable, gear clip, or electronic sensor options
  • Transmission mount
  • Driveshaft yoke options (1310, 1330, or 1350 series; 28-spline)
  • Transmission fluid - 3 quarts ATF Dexron III
  • Lifetime technical support from MDL
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