T5 5-Speed Conversion Package | 1966 Mustang 200ci Inline Six | 136 Tooth

T5 5-Speed Conversion Package | 1966 Mustang 200ci Inline Six | 136 Tooth

T5 5-Speed Conversion Package | 1966 Mustang 200ci Inline Six | 136 Tooth

Description

Key Features

  • TREMEC T5 5-speed transmission with 300 lb-ft torque capacity - compact, reliable, and proven for inline six applications
  • Gear ratios: 2.95 / 1.94 / 1.34 / 1.00 / 0.63 - strong 2.95:1 first gear with deep 0.63:1 overdrive for highway cruising
  • 10-spline input shaft, 28-spline output - standard Ford T5 configuration
  • Offset shifter positions stick in factory location - no tunnel modifications required
  • Designed for three-speed manual conversions - utilizes existing bellhousing components
  • Configured for 1966 200ci with 136-tooth flat flywheel and 9-inch clutch combination
  • Just 75 lbs dry weight - fits where other transmissions cannot in first-gen Mustang chassis
  • Guided package builder walks you through every component selection

Description

The 1966 Mustang with a 200ci inline six and three-speed manual deserves better than that aging, non-synchronized first gear. This complete T5 conversion package delivers modern five-speed performance engineered specifically for your application - the 1966 200ci with its 136-tooth flat flywheel and 9-inch clutch configuration.

The TREMEC T5 is the smallest and lightest transmission in the TREMEC lineup, yet it handles 300 lb-ft of torque with ease - more than enough for a healthy inline six. The 2.95:1 first gear provides strong acceleration while the 0.63:1 overdrive drops RPMs on the highway, reducing engine wear, lowering temperatures, and improving fuel economy. At just 75 pounds dry, the T5 fits into tight first-gen Mustang engine bays where bulkier transmissions simply will not work.

The 1966 model year presents unique challenges for drivetrain swaps. This was a transition year - Ford added a dual bellhousing bolt pattern to 200ci blocks and switched from the recessed 8.5-inch clutch setup to the flat 136-tooth flywheel with 9-inch clutch. This package accounts for those specifics with the proper adapter plate to mate the T5 to your existing three-speed bellhousing components. The custom offset shifter drops into the factory shifter hole, maintaining that stock appearance while giving you a true five-speed gate.

MDL's guided package builder lets you configure every component for your exact needs - choose your clutch setup, shift lever length, speedometer gearing for your rear axle ratio, and driveshaft yoke style. Whether you are building a weekend cruiser or a daily driver, this package includes everything needed for a complete conversion from experts who have been solving Ford inline six drivetrain challenges for decades.

Kit Includes

  • TREMEC T5 5-speed transmission (2.95 first / 0.63 overdrive)
  • Optional 5th gear set (0.73 or 0.83 ratios available)
  • Custom offset shifter assembly for factory positioning
  • Transmission adapter plate for 1966 inline six bellhousing
  • ARP flywheel bolt kit
  • Clutch set (multiple options available)
  • Pressure plate bolt kit (standard or ARP)
  • Shift knob
  • Shift lever (short or standard throw options)
  • Shift boot (leather, vinyl, or Hurst-style options)
  • Reverse light wiring harness
  • Speedometer cable
  • Speedometer driven gear (16-21 tooth options for axle ratio matching)
  • Speedometer gear retaining clip
  • Crossmember for 1965-1966 Mustang
  • Transmission mount
  • Three quarts Dexron III ATF
  • Driveshaft yoke (28-spline, 1310 or 1330 series options)
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