Auto to T5 Conversion Package | 1969-1970 Mustang/Cougar | 350hp

Auto to T5 Conversion Package | 1969-1970 Mustang/Cougar | 350hp

Auto to T5 Conversion Package | 1969-1970 Mustang/Cougar | 350hp

Description

Auto to T5 Conversion Package | 1969-1970 Mustang/Cougar | 350hp

Key Features

  • Complete automatic-to-manual conversion package for '69-'70 Mustangs and Cougars with Ford small-block engines
  • TREMEC T5z Super Duty 5-speed rated for 330 ft-lb of torque - suitable for street cars up to 450hp on DOT-approved tires
  • Gear ratios: 2.95 / 1.94 / 1.34 / 1.00 / 0.63 overdrive - strong launches plus highway-friendly cruising RPM
  • Ultra-compact design at just 75 lbs. dry weight - installs without tunnel or floor modifications
  • Offset shifter positions lever in the correct factory shifter location for OEM appearance
  • Customizable component selection - choose bellhousing, clutch, flywheel, hydraulics, and accessories to match your build
  • 100% brand-new OEM-quality TREMEC components with full manufacturer warranty
  • Guided package builder walks you through every selection for guaranteed compatibility

Description

Swapping your '69-'70 Mustang or Cougar from automatic to manual transforms the entire driving experience, and this customizable T5 package delivers every component needed for a proper conversion. The TREMEC T5z Super Duty 5-speed handles 330 ft-lb of torque - well suited for Ford small-block combinations up to 350 horsepower, with headroom for street cars running up to 450hp on DOT-approved tires. The deep 0.63:1 overdrive drops highway RPM significantly, delivering better fuel economy, reduced engine temperatures, and a quieter cabin while making long-distance cruising genuinely enjoyable.

The T5 is TREMEC's most compact and lightweight transmission at just 75 lbs. dry, making it ideal for first-generation Mustangs and Cougars where tunnel space is tight. Installation requires no major modifications to the floor or transmission tunnel. The 2.95:1 first gear provides strong take-off performance, while the direct 1:1 fourth gear and overdrive fifth deliver smooth highway manners. The offset shifter design positions the gear lever exactly where the original automatic console expects it, maintaining factory appearance and ergonomics.

This package approach lets builders select components based on their specific engine combination, budget, and performance goals. Choose from multiple bellhousing options (aluminum or steel, various bolt patterns), hydraulic or mechanical clutch release systems, steel or aluminum flywheels in multiple weights and balance configurations, and complete clutch packages sized appropriately for your torque output. MDL's guided selection process ensures component compatibility and optimal performance - if you're ever uncertain, their team provides concierge-level support to help spec your build correctly.

The T5z is the best transmission for retrofits of 4-speeds or automatics in classic cars and hot rods with small-block Ford power. Requires 2.75 quarts of ATF Dexron III fluid. Compatible with 1969-1970 Ford Mustang and Mercury Cougar models equipped with 6-bolt small-block Ford engines.

Package Options Include

  • TREMEC T5z Super Duty 5-speed transmission (MD-552-0251)
  • Custom offset shifter for correct lever positioning
  • Choice of aluminum or steel bellhousings with 6-bolt small-block Ford pattern
  • Bellhousing block plates and installation hardware kits (aluminum or steel)
  • Clutch fork for mechanical release
  • Clutch pedal assembly for automatic-to-manual conversion
  • Pedal pad kits (manual or deluxe brake)
  • Clutch pedal bushings or bearing options
  • Choice of clutch cable kit or hydraulic master/slave cylinder systems
  • Flywheel options: steel, chromoly, or aluminum in multiple weights and balance configurations (157-tooth ring gear)
  • ARP flywheel and pressure plate bolt sets
  • Complete clutch kit rated for your torque level
  • Shift knobs, levers, boots, and bezels in multiple styles
  • Shift knob thread adapters
  • Speedometer cables, driven gears (16-21 tooth), and retaining clips
  • Reverse light wiring harness
  • Transmission fluid (3 quarts ATF)
  • T5-specific crossmember and transmission mount
  • Drive shaft yokes (28-spline, 1310/1330/1350 U-joint options)
  • Lifetime technical support and installation guidance
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