Auto to T5 Conversion Package | 1965-1966 Mustang | Small Block Ford

Auto to T5 Conversion Package | 1965-1966 Mustang | Small Block Ford

Auto to T5 Conversion Package | 1965-1966 Mustang | Small Block Ford

Description

Auto to T5 Conversion Package | 1965-1966 Mustang | Small Block Ford

Key Features

  • Complete automatic-to-manual conversion with TREMEC Super Duty T5z 5-speed transmission
  • 330 ft-lb torque capacity - suitable for street cars up to 450 hp on DOT-approved tires
  • Gear ratios: 2.95 / 1.94 / 1.34 / 1.00 / 0.63 with deep overdrive for highway cruising
  • 75 lbs. dry weight - TREMEC's most compact transmission fits first-gen Mustangs without tunnel mods
  • 10-spline input shaft, 28-spline output shaft configuration
  • Offset shifter positions in factory shifter hole location
  • Configurable clutch actuation: cable or hydraulic systems available
  • Flywheel options include cast iron, nodular iron, and billet aluminum with SFI-rated versions
  • Guided package builder walks you through every component selection

Description

Swapping your '65-'66 Mustang from a slushbox to a proper manual transmission transforms the entire driving experience - but getting all the right parts in one place can be a project in itself. This MDL conversion package solves that problem by bundling a brand-new TREMEC Super Duty T5z with every component needed for a complete automatic-to-manual swap behind a small block Ford engine. The T5z safely handles 330 ft-lb of torque and works well in street cars producing up to 450 hp when driven on DOT-approved tires - making it the ideal choice for mild to moderate small block builds where space is tight.

At just 75 lbs. dry, the T5 is TREMEC's most compact and lightweight transmission, fitting first-generation Mustang tunnels without modifications. The 2.95:1 first gear delivers strong acceleration off the line, while the deep 0.63:1 overdrive fifth gear drops highway RPM significantly - reducing noise, heat, and fuel consumption on long drives. The included offset shifter positions the shift lever directly in the factory console location, maintaining the stock interior appearance while delivering crisp, modern shifting.

The guided package configurator lets you select every component for your specific build: choose between aluminum or steel bellhousings, cable or hydraulic clutch actuation, and flywheel material ranging from economical cast iron to lightweight billet aluminum with optional SFI certification. Clutch kits are matched to the 300 hp rating in the package name, and all necessary hardware - from flywheel bolts to clutch pedal assemblies - is included. MDL has engineered this package specifically for first-gen Mustangs, ensuring proper fitment and compatibility throughout.

The World Class T5z features carbon fiber 1-2-3-4 blocker rings, Cobra-style pocket bearing, steel front bearing retainer, and tapered output shaft bearing for improved durability and smooth shifts. Requires 2.75 quarts of ATF (Dexron III) - never use gear oil in a World Class T5. Compatible with 1965-1966 Ford Mustang with small block Ford engines (289, 302). If you have questions about component selection or need help configuring for your specific build, contact MDL's tech team at 208-453-9800.

Kit Includes (Configurable)

  • TREMEC Super Duty T5z 5-speed transmission (MD-552-0251) with factory shifter
  • Custom offset shifter assembly (MD-88-421-204-03)
  • Bellhousing - choice of aluminum or steel with Ford small block bolt pattern
  • Bellhousing block plate and clutch fork
  • Installation hardware kit (bellhousing-specific)
  • Flywheel - choice of cast iron, nodular iron, or billet aluminum (SFI options available)
  • ARP flywheel bolt set
  • Clutch kit with pressure plate (300 hp rated)
  • Pressure plate bolt set (standard or ARP)
  • Manual clutch pedal assembly with pedal pad
  • Clutch pedal stop and support bracket
  • Clutch actuation - choice of cable kit or hydraulic master/slave system
  • Shift knob, lever, boot, and bezel selections
  • Mechanical speedometer cable and driven gear
  • Speedometer gear retaining clip
  • Transmission crossmember and mount
  • 3 quarts ATF transmission fluid
  • Reverse light wiring harness
  • Driveshaft and yoke options available
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