Gearbox Conversion for E-Type, 5-Speed

Upgrade your classic Jaguar E-Type with a modern 5-speed gearbox conversion. This conversion replaces the original 4-speed transmission with a Tremec T5-based gearbox, offering improved shifting and a more relaxed driving experience.

The additional fifth gear provides an overdrive ratio for lower engine RPM at highway speeds, making longer journeys more comfortable while retaining well-spaced ratios for everyday driving. The standard fifth-gear ratio is 0.63, with alternative ratios available to suit your driving requirements.

What's Included:

  • New Tremec T5-based 5-speed gearbox
  • Adaptor plate to fit the original Jaguar bellhousing bolt pattern
  • Bellhousing locator ring
  • Spigot nose bush
  • Speedometer drive compatible with the standard 3mm square speedometer cable
  • Reverse light switch
  • Sliding output flange

Specifications:

  • Applications: Jaguar E-Type 3.8, 4.2, V12 and 2+2
  • Standard fifth-gear ratio: 0.63
  • Oil capacity: 2.2 liters
  • Dry weight: 22 kg (approximately 48.5 lbs)
  • Recommended lubricant: Dexron III ATF

A worthwhile upgrade for restorations and drivers looking to enjoy their E-Type on modern roads, this 5-speed conversion combines classic Jaguar character with improved transmission usability and relaxed highway cruising.

Please contact us to confirm vehicle compatibility, available fifth-gear ratios, pricing and any additional components required for installation.

Please contact us at 800-875-5247 or email info@welshent.com for availability, pricing, or more details.
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E-Type - S1 3.8 - Roadster (1961-1964)
E-Type - S1 3.8 - FHC (1961-1964)
E-Type - S1 4.2 - FHC (1964-1968)
E-Type - S1 4.2 - Roadster (1964-1968)
E-Type - S1.5 - Roadster (1968-1969)
E-Type - S1.5 - FHC (1968-1969)
E-Type - S2 - FHC (1969-1971)
E-Type - S2 - Roadster (1969-1971)

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Item #C3964
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$5.95