T5z 5-Speed Conversion Package | 1971-1973 Mustang & Cougar | Auto to Manual

T5z 5-Speed Conversion Package | 1971-1973 Mustang & Cougar | Auto to Manual

T5z 5-Speed Conversion Package | 1971-1973 Mustang & Cougar | Auto to Manual

Description

Key Features

  • TREMEC T5z Super Duty transmission with 330 ft-lb torque capacity - handles up to 450 hp on DOT-approved tires
  • Gear ratios: 2.95 / 1.94 / 1.34 / 1.00 / 0.63:1 with deep overdrive for highway cruising
  • Just 75 lbs dry - the smallest and lightest transmission in the TREMEC lineup
  • Complete modular package covers every component from bellhousing to driveshaft yoke
  • Offset shifter maintains factory console shifter position in '71-'73 Mustang and Cougar
  • 10-spline input shaft and 28-spline output shaft
  • World Class internals with tapered carrier bearings, needle bearings, and carbon fiber synchro rings
  • Compatible with Ford small block engines using 6-bolt bellhousing pattern
  • Requires 2.75 quarts ATF Dexron III

Description

Converting your '71-'73 Mustang or Cougar from automatic to manual transforms the driving experience - and this complete T5z package delivers everything you need to do it right. No hunting for compatible parts across multiple suppliers. No fitment guesswork. MDL has engineered this system specifically for Ford small block applications in these chassis, so every component bolts together as intended.

The TREMEC T5z Super Duty sits at the heart of this conversion. At just 75 lbs dry, it is the most compact transmission in the TREMEC lineup - critical when retrofitting classic unibody cars where tunnel clearance matters. The 2.95:1 first gear provides strong launches without the excessive multiplication that stresses drivetrain components, while the deep 0.63:1 overdrive drops highway RPMs dramatically. Lower cruise RPMs mean reduced engine temps, better fuel economy, and a quieter cabin on those long drives.

The T5z handles 330 ft-lb of torque - suitable for street cars making up to 450 hp on DOT-approved tires. World Class internals including tapered carrier bearings, needle bearings under 1st through 3rd gears, and carbon fiber synchro rings ensure smooth shifts and long service life. The 10-spline input and 28-spline output are proven designs that mate easily with Ford small block clutch discs and standard driveshaft yokes.

This package includes configurable options for bellhousing, flywheel, clutch kit, pedal assembly, clutch actuation, crossmember, shifter components, and speedometer drive - everything required for a complete auto-to-manual swap. The offset shifter positions the knob right where the factory manual cars placed it, preserving your console layout. MDL's concierge service walks you through component selection if you need guidance matching parts to your power level and budget.

What's Included

  • TREMEC T5z Super Duty 5-speed transmission (part MD-552-0251)
  • Custom offset shifter for factory shifter location
  • Bellhousing options - aluminum or steel
  • Bellhousing block plate
  • Bellhousing hardware kit (aluminum or steel bolts)
  • Flywheel selection - steel, aluminum, or SFI-approved
  • ARP flywheel bolts
  • Clutch kit options (multiple configurations available)
  • Pressure plate bolts (standard or ARP)
  • Bellhousing clutch fork
  • Clutch pedal assembly
  • Clutch pedal bushing and bearing kit
  • Pedal pad kit (multiple finish options)
  • Clutch cable kit
  • Shift knob and lever options
  • Shift boot and bezel
  • Speedometer cable
  • Speedometer driven gear (multiple tooth counts available)
  • Speedometer gear retaining clip
  • Reverse light wiring harness
  • Application-specific crossmember
  • Transmission mount
  • Three quarts ATF transmission fluid
  • Driveshaft yoke options (1310, 1330, or 1350 U-joint patterns)
  • Lifetime technical support from MDL
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