Auto-to-T5z Conversion Package | 1967-1968 Mustang | Small-Block Ford

Auto-to-T5z Conversion Package | 1967-1968 Mustang | Small-Block Ford

Auto-to-T5z Conversion Package | 1967-1968 Mustang | Small-Block Ford

Description

Auto-to-T5z Conversion Package | 1967-1968 Mustang | Small-Block Ford

Key Features

  • TREMEC Super Duty T5z 5-speed with 330 ft-lb torque capacity, suitable for street cars up to 450 hp
  • Gear ratios: 2.95 / 1.94 / 1.34 / 1.00 / 0.63:1 OD (reverse 2.76:1) - stronger 2.95 first gear vs. stock 3.35
  • Ultra-compact and lightweight design - just 75 lbs dry weight
  • 10-spline input shaft and 28-spline output shaft
  • Steel front bearing retainer and Cobra-style pocket bearing
  • Carbon fiber 1-2-3-4 synchronizer rings for smooth, positive shifts
  • Offset shifter positions the stick in the OEM shifter hole - no tunnel modifications
  • Complete customizable package with bellhousing, clutch, hydraulic, and flywheel options
  • Requires 2.75 quarts of ATF Dexron III / Mercon fluid

Description

Converting your '67-'68 Mustang from an automatic to a 5-speed manual unlocks a completely different driving experience - sharper throttle response, direct engine connection, and the deep overdrive that makes highway cruising effortless. This MDL Auto-to-T5z conversion package delivers everything needed to swap that slush box for TREMEC's most compact and lightweight 5-speed transmission. The T5z's proven Super Duty architecture handles 330 ft-lb of torque with room to spare, making it ideal for small-block Ford builds up to 450 horsepower on street tires.

The Z-spec T5 uses the stronger 2.95:1 first gear ratio instead of the weaker 3.35:1 found in '85-'93 V8 Mustang applications. This closer-ratio gearset delivers better torque multiplication off the line while the deep 0.63:1 overdrive drops highway RPM dramatically - improving fuel economy, reducing engine temperatures, and delivering a quieter in-car experience at cruise. Double-moly 2nd, 3rd, and countershaft cluster gears combined with carbon fiber blocker rings ensure smooth, positive shifts throughout the powerband.

The T5z's compact footprint is purpose-built for classic car retrofits. At just 75 lbs dry, it slides into the first-gen Mustang transmission tunnel without modification. The package includes an offset shifter that positions the shift lever directly in the factory shifter hole, retaining the stock shifter location your interior was designed around. No cutting, no welding, no compromise.

MDL's guided package selection walks you through every component choice - from bellhousing material (aluminum or steel) to clutch actuation (cable or hydraulic) to flywheel balance and material. Each option has been specifically vetted for '67-'68 Mustang and Cougar compatibility with small-block Ford engines. If you're ever uncertain, MDL's concierge service can help you select the correct parts for your project and budget. Made in the USA.

What's Included

  • TREMEC Super Duty T5z 5-speed transmission (2.95 first / 0.63 OD)
  • Custom MDL offset shifter assembly
  • Bellhousing (choice of aluminum or steel options)
  • Bellhousing block plate
  • Installation hardware kit (aluminum or steel fasteners)
  • Mechanical clutch fork
  • Flywheel (choice of steel, lightweight steel, SFI-approved, or aluminum)
  • ARP flywheel bolts
  • Clutch kit with disc and pressure plate
  • Pressure plate bolts (standard or ARP)
  • Clutch pedal assembly with adjustable stop
  • Pedal pad kit
  • Pedal support bracket
  • Clutch actuation system (cable kit or hydraulic master/slave cylinder kit)
  • Shift knob (multiple styles available)
  • Shift lever
  • Shift boot and bezel
  • Speedometer cable
  • Speedometer driven gear (selectable tooth count for ratio calibration)
  • Speedo gear retaining clip
  • Custom T5 crossmember
  • Transmission mount
  • 3 quarts ATF transmission fluid
  • Reverse light wiring harness
  • Driveshaft yoke (1310, 1330, or 1350 U-joint size options, 28-spline)
  • MDL lifetime technical support
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