Jaguar XK120 5-speed conversion kit

SKU: PFJA-10001 Category:

Kit Contents:
Brand new gear box customized to fit the XK120
Gearbox isolating mount
• CNC milled bellhousing adapter
• Clutch disc
• Propshaft yoke. (New propshaft is optional.)
• Reverse lamp switch and harness
• XK style 5 speed knob
• XK style chrome gear lever
• Speedometer cable with gear
• Correct shift lever position
• Choice of gear ratios appropriate for Jaguar
• 2 year unlimited mileage warranty
• Includes mounts, hardware and accessories

Pricing starts at $4745. 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



• No modifications to factory bellhousing
Uses original spigot bush, pressure plate and clutch mechanism
• The 1st – 4th gear ratios in our standard ratio 5 speed package are practically the same as 1st – 4th in the Jaguar all synchro 4 speed box.
• 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 need high RPM’s to make power.


XK120 5-Speed Conversion Kit, includes:

New TREMEC Overdrive 5-speed customized for Jaguar XK- ratios 2.95, 1.94, 1.34, 1:1, Optional Overdrive gears .63, .73 or .80
Clutch Disc – 10″
Chrome Shift Lever
XK Style Shift Knob
Bell Housing Adapter
Transmission Isolator
Weatherseal Reverse Light Wiring Harness
Prop-shaft Speedometer Cable
Calibrated Speedometer Gear

optional prop shaft shown in image*

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