Auto to T5 Conversion Package | 1965-1966 Mustang | 170/200ci Inline Six

Auto to T5 Conversion Package | 1965-1966 Mustang | 170/200ci Inline Six

Auto to T5 Conversion Package | 1965-1966 Mustang | 170/200ci Inline Six

Description

Key Features

  • TREMEC T5 five-speed with 2.95:1 first gear and 0.63:1 overdrive - ideal gearing for inline six power characteristics
  • 330 lb-ft torque capacity - more than enough for stock or mildly built 170/200ci engines
  • Just 75 lbs dry weight - TREMEC's most compact transmission fits the tight early Mustang engine bay
  • Uses stock five-bolt bellhousing with adapter plate - retains factory mechanical clutch linkage, fork, and related components
  • Offset shifter positions in original shifter hole - no floor modifications required
  • 132-tooth flywheel and 3-bolt starter pattern - correct configuration for '65-'66 inline six applications
  • Complete conversion package - all major components included for automatic-to-manual swap
  • Optional 0.73:1 overdrive gear set available for taller highway cruising

Description

Converting your '65-'66 Mustang from automatic to a proper manual transmission doesn't require major surgery when you start with the right package. This MDL conversion is purpose-built for early Mustangs equipped with 170ci or 200ci inline six engines, configured with the correct 132-tooth flywheel and 3-bolt starter pattern. The TREMEC T5 five-speed delivers the overdrive cruising your inline six deserves while adding real driving engagement to your classic pony car.

The T5's 2.95:1 first gear provides strong launches - critical for the inline six's modest torque output - while the deep 0.63:1 overdrive drops highway RPMs dramatically. At 75 pounds dry, the T5 is TREMEC's most compact transmission, fitting where heavier four-speeds and larger five-speeds simply won't. The gear ratio spread (2.95, 1.94, 1.34, 1.00, 0.63) provides closer spacing than a three-speed while adding that fuel-saving fifth gear. For even taller highway gearing, an optional 0.73:1 overdrive gear set is available.

The engineering advantage of this package lies in using your existing five-bolt bellhousing with our adapter plate. This approach preserves the factory mechanical clutch linkage, fork, and pivot ball - eliminating the cost and complexity of hydraulic conversions. The offset shifter design positions the gear lever in the factory shifter location without cutting your floor, maintaining the car's interior integrity. With a 330 lb-ft torque rating, the Super Duty T5 handles anything your inline six can produce with margin to spare.

This guided package system walks you through selecting every component needed for a complete conversion - transmission, adapter, flywheel, clutch, crossmember, mount, speedo components, and shifter hardware. Each selection is tailored for your specific application, ensuring proper fitment and function from the start.

What's Included

  • TREMEC T5 Super Duty five-speed transmission (2.95:1 first, 0.63:1 overdrive)
  • Transmission adapter plate for five-bolt bellhousing
  • 132-tooth steel flywheel for 3-bolt starter configuration
  • ARP flywheel bolt kit
  • Clutch kit (8.5-inch diameter) with pressure plate and disc
  • Pressure plate bolt kit
  • Clutch fork
  • Clutch fork boot
  • Clutch fork spring
  • Crossmember kit for '65-'66 Mustang T5 installation
  • Transmission mount
  • Speedometer cable
  • Speedometer driven gear (selected by tire size and axle ratio)
  • Speedo gear retaining clip
  • Clutch pedal assembly for '65-'66 Mustang
  • Pedal pad kit
  • Hardware kit
  • 28-spline output yoke
  • Dexron III ATF (3 quarts)
  • Shift boot and bezel options
  • Shift knob options
  • Shift lever options
  • Lifetime technical support
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