Jaguar MKI/MKII 3.4 and 3.8L 5-speed conversion kit

SKU: PFJA-20001 Category:

Kit Contents:
• Patented: 100% new custom built gearbox based on the Tremec Z Spec T5
• New cast aluminum bell housing
• Chrome shift lever
• Jaguar style shift knob
• Gearbox mount
• Gearbox support bracket
• Reverse lamp harness
• Installation hardware
• Jaguar specification output flange


Pricing starts at $6055. Kits are built to order. Please call us at 931-646-4836 or hit the request for quote button below for a quick emailed quote.

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If you don't know what you need, call our technical sales staff at 931-646-4836


• 2 year unlimited mileage warranty
• No modifications to the car body
• Shift lever is in the original Jaguar location.
• Uses original Jaguar right angle speedometer drive
• Uses the standard 4.2 Jaguar 9.5″ clutch kit *
• Uses the standard 4 speed propshaft. **
• The 1st – 4th gear ratios in our standard ratio 5 speed package are practically the same as 1st – 4th in the Jaguar E Type all synchro 4 speed gearbox. This means they are ideally suited to the power curve of the Jaguar inline 6 cylinder engine unlike many other gearboxes, such as the Cosworth box, which were originally designed for 4 cylinder engines that needed high revs to make power.
• The only patented 5 speed gearbox available for the E Type or MKII

MKI/MKII/3.4S/3.8S No Cut 5-Speed Conversion Kit with optional 5th gear – .73 or .80, includes:

New Custom Built 5-speed gearbox – Original Fit and Shift Position, ratios 2.95, 1.94, 1.34, 1.00,  .73 or .80 optional OD gear
New custom aluminum alloy bellhousing
Reverse lamp switch and harness
Gearbox isolator mount
Jaguar style speedometer drive which use original cable and right angle drive
Chrome plated gear lever
Jaguar style 5 speed knob

NOTE: Compatible ONLY with original Jaguar 9.5″ Clutch Assembly.

** Note that MKII Sedan and Jaguar E Type 2+2 require a new propshaft

Prop shaft shown in image is optional

Weight: 85.0000 lbs

Dimensions: W14.0000" x H19.0000" x L26.0000"

If you don't know what you need, call our technical sales staff at 931-646-4836