T5 5-Speed Conversion Package | 1974-1978 Mustang II | Manual to T5

T5 5-Speed Conversion Package | 1974-1978 Mustang II | Manual to T5

T5 5-Speed Conversion Package | 1974-1978 Mustang II | Manual to T5

Description

Key Features

  • 300 lb-ft torque capacity with just 75 lbs dry weight - ideal for moderate horsepower builds where space is limited
  • 2.95/1.94/1.34/1.00/0.63 gear ratios with deep 0.63:1 overdrive for fuel savings and relaxed highway cruising
  • 2" offset shifter maintains stock shift lever position for original interior feel
  • Designed for use with stock Mustang II four-speed bellhousing - keeps conversion costs down while retaining originality
  • 10-spline input shaft, 31-spline output shaft, mechanical speedometer drive
  • Complete guided package selection with customizable components for your specific build
  • Compatible with TREMEC HP-MTF, Pennzoil Synchromesh, Dexron III/Mercon ATF, or Mobil 1 ATF

Description

Transform your '74-'78 Mustang II from a sluggish four-speed or automatic to a crisp-shifting five-speed with this complete TREMEC T5 conversion package. The aftermarket T5 safely handles 330 ft-lb of torque and is suitable for 450 hp street cars on DOT-approved tires, making it the perfect upgrade for weekend cruisers and spirited daily drivers. Dollar-for-dollar, pound-for-pound, the T5 is the smoothest-shifting and most reliable manual transmission for moderate horsepower applications - and at just 75 lbs dry, it fits where larger transmissions simply cannot.

This package was specifically engineered for Mustang II owners who want to retain their stock four-speed bellhousing, keeping conversion costs down while maintaining that factory appearance under the hood. The compact T5 case tucks neatly into the Mustang II's tight transmission tunnel, and the 2" offset shifter places the shift knob exactly where the factory intended. The 2.95 first gear provides strong acceleration off the line, while the deep 0.63:1 overdrive reduces RPMs for better fuel economy, lower engine temperatures, and a much quieter in-car experience at highway speeds.

MDL's guided package selection walks you through every component choice - from clutch sets and flywheels to speedometer gears and shift knobs. Whether you're building a numbers-matching restoration or a spirited street machine, this customizable package adapts to your project's specific requirements and budget. Every component is carefully selected to work together seamlessly, eliminating the guesswork and compatibility headaches that plague piecemeal conversions.

With lifetime tech support from MDL's drivetrain specialists, you'll have expert guidance from initial planning through final installation. Questions about bellhousing clocking, pilot bushing fitment, or speedometer gear selection? Our team has the answers. This isn't a box of parts - it's a complete engineered solution backed by decades of five-speed conversion experience.

What's Included

  • TREMEC T5 5-speed transmission with 2.95 first gear and 0.63 overdrive (10-spline input, 31-spline output)
  • Shifter assembly with 2" offset for stock lever position
  • Choice of lightweight or steel flywheel options (148mm or 157mm)
  • Clutch set (multiple disc material options available)
  • Pilot bearing for proper input shaft support
  • Speedometer driven gear (16-21 tooth options for various rear axle ratios)
  • Speedometer gear retaining clip
  • Custom transmission crossmember designed for Mustang II chassis with stock MII bellhousing
  • 3 quarts ATF transmission fluid
  • Flywheel bolts and pressure plate bolts
  • Shift knob and thread adapter options
  • Shift lever options
  • Slip yoke for driveshaft (1310, 1330, or 1350 series options, 28-spline)
  • Lifetime technical support
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